Matching 2 racquets

[jjs891]

Hi
I have 2 Volkl Super G 8 315 racquets that I am trying out.
My problem is that one is a bit under spec and weighs 9 grams less than one close to the spec.
How can I add lead tape to the under spec one to match ? The balance are almost identical.
I have not measured the SW but if I can get them to be similar weight and balance, I think I'm good to go.
Any help from the experts are welcome. Thx

 

[jorel]

http://www.tennis-warehouse.com/LC/

Simple answer....add 9 g of lead to the throat

 

[jjs891]

Thanks jorel

 

[jjs891]

Yeah looks like it's only going to add ~3 kg cm2 so that would be perfect since SW of both are fairly close.

 

[jorel]

More complicated answer...add 4.5 g at. 3 and 9 and counterweight the handle...what I would do

 

[jorel]

Yeah looks like it's only going to add ~3 kg cm2 so that would be perfect since SW of both are fairly close.

More complicated answer...add 4.5 g at. 3 and 9 and counterweight the handle...what I would do

 

[jjs891]

Adding 4.5g at 3 and 9 will increase the SW way more than I want, I think.
I just want to match it to more on spec so the first option probably is better for me.
I added weight at the throat temporarily ( just attached lead tape with electrical tape over it instead of usual method so I can adjust if I need to ), and I'll try it out today. If it feels ok, I'll permanently pace the lead .

 

[jorel]

Adding 4.5g at 3 and 9 will increase the SW way more than I want, I think.
I just want to match it to more on spec so the first option probably is better for me.
I added weight at the throat temporarily ( just attached lead tape with electrical tape over it instead of usual method so I can adjust if I need to ), and I'll try it out today. If it feels ok, I'll permanently pace the lead .

not if u counterbalance but that's why it's the more complicated version and maybe more stable at 3 and 9 but anyways have fun

 

[jjs891]

According to TW customization calculator, first method adds ~3kg cm2 whereas the second method adds ~11 kg cm2
I really do not want to add that much SW, not at this time anyway. Plus the SW of the two racquets will not match if I did the second method. Will experiment and figure it out.

Thank you again jorel !!

 

[jorel]

I think ur missing a few things but ok

 

[Christian Olsson]

Knowing exact balance and SW on the heavier one is crucial. And the difference between the two. Not much difference can still mean that you should weigh at top of handle for minimum SW affecting. For instance. Easy way is to really carefully measure up SW and BP and then fill in the numbers in the TW mod automation on their site.

 

[Irvin]

I agree with @Christian Olsson, you need to know the SW and balance. If the SWs are the same on both frames they won't be when you add 9 g to the lighter one. My guess is the higher weight frame has the largest SW too. So when you add mass to the throats to get the balance the same you adding about (.009*22*22) 4.5 SW poyints if your current balance is 320 mm. If you add 4.5 g at 54 cm (44 cm above 10 cm pivot) you SW will go up (.0045*44*44) about 9 point. Adding 4.5 g at 10 cm pivot will not increase the SW. Therefore dividing the mass you add into two equal portions and placing the lead equidistant from the balance point as far as balance goes does nothing. But you now have the ability to vary the SW by 4.5 to 9 points. BTW that's not enough to notice a difference unless the lighter racket has the higher SW.

 

[jjs891]

The lighter one's SW is fairly close to the heavier one, just slightly less. I'm going strictly by feel but SWs of both are not too far off even though static weight is 9 gms off. I added 6 gms to the throat bridge area and 1gm each at 3 and 9 o'clock areas, and they swing the same now. I used to carefully measure static weight, SW, and balance pts, but nowadays I pretty much go by the feel and seems to work ok for me.
I do agree with Irvin and C. Olsson that to be accurate, SW needs to be measured along with balance pts and static weight. I'm just the casual social player nowadays and this is good enough for me.
Thanks all for the knowledge and inputs.