I bought the jump 300 because I wanted high speed with a lot of pull. I was hoping for the same thing when I picked up the HQ Hydra 350, but it was frankly, a little boring. The 300 is everything I wanted. 15 mph wind is enough to knock me over if I’m not prepared, but not enough to pick me up (6’ 230lbs). It’s not as quick as my HQ Symphony Pro 2.5, but it is smoother and easier to steer (less twitchy with steering input) highly recommended. It would be interesting to build a 400…