Alright, just came back from playing the two Bio100's.
Setup: Gosen OG Micro 16. One @55 (moded 347 gram) and one @60 (stock, 337 gram with overgrip). Both strung about one hour prior to play on the same stringing machine. On my clamp-on guitar tuner, the 55 lbs tension registered F# -1/4 and the 60 lbs registered F# +1/4.
I don't use any type of dampener on my rackets.
The very first impression:
- Gosh! They suck bad time! Hitting with a plank could be much better!
After one hour, after putting up with the bad time by just banging away, sort of aimlessly:
- Things got better as the strings were more "broken-in".
After and hour and a half:
- Tried the dampener on top at 12, just to see "what if" I have 3 grams up there. Nice, more stable, but made me very slow. Moved the dampener down to the normal zone at 6 and it's good, but "not-there-yet".
The strings have much lower tension now. Each racket must have dropped over 6 lbs of tension, using my clamp-on guitar tuner to check the change in the pitch.
After two hours and ended play:
- I like the weight of the heavier, moded racket but will cetainly need 2-3 grams total at 3 & 9 for better weight behind the ball and stability. Will have to restring with 17G @60 lbs may be a day, or at least 6-8 hours, before play. (Well, I love high tension syn gut.)
The Bio100 is a nice stick, except that, for me, I need to mod it up a bit. (Well ... ain't I'm a Wizard of Mods?

) I like the way I can control the shots once the strings were broken-in. I kinda like it when it rip a flat FH. The BH, for me, was a bit unstable. A little more weight in the hoop will do a lot of good. Haven't tried serving.
Now, about the feel:
- This stick will really punish you worse than the Redondo if you hit off center. The shots will be just a dud and won't go anywhere (and could go everywhere). Off-center hits felt very "planky", not jarring and doesn't feel harmful to your arm. But you certainly won't like it. If you're a precise center-hitter, the stick will reward you with a very plush and confident feel.
Next week, if I don't have to evacuate and leave Bangkok due to the floods, I'll report more with my new setup.
That's it for now. It's almost 3 AM in Bangkok and I have to monitor the flood reports too.
Cheers!