I was able to hit with the Ripstick 100 and first impressions were very good. For reference my go to stick right now is the Blade v9 16x19. I have been trying the Ultra Pro 99 as well. Specs are around the 324-326 range with with a 3-4 HL balance. I chose the 100 because it had a similar spec range of 4pts HL and 326 SW(mine is 332). I also compared the TW reviews and after hearing of the tighter Sweetspot on the 98, I opted for the larger frame.
I'm glad I went for the 100, feels solid on contact and I have good access to power. Spin is good but the highlight is the plow through. With O-Ports I feel you need to swing out to get the most out of the frame. If you don't acceleration enough the ball can die on you at times. This frame reminds me of hitting with hit the Exo 100 Tour Mp and rebel 95, loved those frames form Prince!
Currently, I have the Ripstick 100 strung at 40pds with Hyper-G 17. I have no issues with power or control. Lately I have dropped into the 40-42pd range from 47-52pds and find that Hyper-G has good snapback and control. Once the string breaks, I'll string with Votex and see how that works. I appreciate that TW sent 17 gauge!! I have a feeling that the strings will last around 4-6 hours like the Ultra Pro 99. They both have a 16x18 pattern and that allows you to flatten out the ball.
Funny story, I was at Indian Wells this year and bumped into the Prince team when they were launching the Ripstick frames. Talked to the team about the Exo frames and was able to get a shirt for the new Ripstick. Just a cool thing to be on the playtest and rep it now!