I was happy with my helix when I first got it, because it was the first tuned motor I had used and was much better than something out of the box. I’m pretty disappointed in it now, though. Other motors like the R1 seem to be doing better on small tight clay tracks. I’ve tried to get some more punch out of it by reducing the gearing but it doesn’t work as well for short run-ups to jumps as keeping a tall gear with a torquier motor. That’s just my experience anyway. I agree don’t throw much more money at it, just go a different direction with your money next time. Use this testing data to your advantage. I’m sure the helix is awesome for other scenarios but a small tight clay track you probably want the torque, not necessarily a bunch of rpm.