Fwiw i think Ranchdressing had a great video on MgR/I and explains how it might not work for some people though i know you are not a fan i think the vid deserves some attention.
Mu 2 cents is its like popcorn. As dennis Miller says who cares why it pops, it just does! I dont have time to figure it out but i do have time to implement the theory and get my racquet to feel great.
Thank you!
No matter what your racket weighs or where your balance point is if you add 8 g 20 cm above the balance point you can add the same weight the same distance below the balance point. If it balance when you started it will have the same balance after. Another option is the product of the mass 8 g) and distance (20 cm) must be the same above and below. If you add 8 g x 20 cm or 160 gcm above you must add 120 gcm below. It does not matter if it is 12 g at 10 cm, 10 at 12 cm, 4 g at 30 cm, etc...
Awesome response! This definitely makes sense... I will tinker before I head off to the courts tonight. Thank you!
Could not agree more. Swing weight determines how the racket feels when they swing it. For example, the Inertia of a racket (what it feel like to swing it) always goes up when you add weight. And because because the Inertia goes up it requires more force to swing the racket. Let's assume we have a racket:
So what would be a good starting point (in grams) for this? And where on the handle? Such as closer to the butt-cap or throat...
I really believe any mass you add to the handle is going to increase the force required to swing it so I'd be a little afraid to make a suggestion in grams for you. I like the added weight to my stock frames but maybe you would not. If you question is about adding something to the top and bottom bevels you could start with something like cardboard (not corrugated,) or strips of tape, or even something heavier like 1/2" lead tape. You want it to extend the length of your grip so how long it is depend on if you have a 1/2 hand backhand. I went from the top of butt cap (where it meets the pallet) to the top of the pallet and love it.
I do that to a certain extend. Usually we do it because adding mass increases swingweight, which means more power. It makes sense for people to compensate that increase in power with higher tension to regain the lowered control. In your case, 50g seems quite a lot, so not surprising you have to increase tension to better manage the swingweight.
Exactly!! Thats why i am using 86lbs! With my normal racquets like the profile you can still get power and need to string high to control. That was a problem i had on sunday because the sw was low but tension was still high...no power
It wouldnt be useless, just more head-heavy than what it already is. You'll still be able to get to RF97's SW, but the APD will feel less maneuverable. See if that works. Aware you don't want to tweak the handle, I would however still reccomend it. You'll get it closer to RF97's static weight and balance as an added benefit too.
babolat rackets have trap door on the butt cap, add weight to 3-9 (6grams) and 12 (2grams), add 16 grams inside the trap door and that should do the trick.
Think i managed 4 once
One would think. But i find the sw is the same or are least i shoot for the same weight and balance with the smaller headed racquets and the power is comparable. Also i could never get the 110" tight enough so this is great in the 95"
Its thicker and you can't put it under the bumper
I had totally forgot babolats have a trap door, thanks! Definitely going to try out as you suggested once I get my hands on some lead tape.
Thanks, I guess it would've been a bad idea for me to omit adding weight to the handle then since I prefer head-light rackets.
use blue tack putty, tungsten putty or tungsten rubber inside the trap door, it is easier to use there.
You can put weight anywhere you want to put lead. You can also just move the existing lead around if you don't want to increase the total weight. If I were customizing my rackets for total weight, SW, and balance I would not want to add more weight at 7" just to get the MgR/I where I want it. That only means my total weight, SW, and balance were off.
Assuming you're pivoting the racket from the butt (or some point up your arm) lowers the center of mass making the Radius shorter. That will also speed up the racket. But at the same time it changes inertia. And it is difficult for most people to pivot a racket from the butt. Most people that use any home measurements swing the racket from a pivot above the center of mass like a cross swing. Any because the pivot is on the opposite side of the balance point the effect is different. Adding mass anywhere below the COM slows down the period.
How does adding weight speed up the swing? If a racket is suspend from the butt and allowing to pivot the closer the center of mass is to the pivot the faster it will swing. The period is only dependent on the distance from the pivot to the center of mass to the pivot and inertia not mass. Here's a simple experiment you can do. Get yourself a 10 pound sledge hammer and drill a hole very close to the end of the handle. Hang the hammer on a very sturdy nail and time the period. Now put two 25 lb weights about 1' from the end of the handle and let it swing you will notice a faster period because the balance point is now closer to the pivot.
What?
How does adding static weight anywhere above where the hand grips the racquet speed up the swing?
Surely, assuming the same applied force, increasing the static weight will actually slow the swing down because because of the effects of inertia.
For example, if I have two racquets that have identical static weight but different Balance specs. Swinging both racquets with the same applied force will yield higher RHS in the racquet that is more Head Light.
... Or am I missing something here?
Hang on. I see that you said "speeds up the swing". Ok, now I get it
It will speed up the swing, but it will require greater applied force to get the racquet into position to take advantage of the increased swing speed. Good ole gravity at work.
If you add mass to 7" you will increase SW. If you increase SW you increase the force required to swing the racket. Adding mass to a racket will make it swing faster when pivoting from a 0 cm pivot. When you're playing tennis the racket will not be easier to swing and it will not be less tiring.
