Yes, I did but that doesn't mean it won't work for someone else. It didn't work for me.

Anyway, it was a worthwhile experiment to see first, what would the velo stack actually do regards to noise? Second, would it result in any improvement in output (power and throttle response)? Third, how user friendly would it be?

Well, having had 7 flights with it, about the only thing I noticed besides the choking, was that in both the 8 point roll and 4 point roll, the engine would burble as it entered the 5th point or 3rd point respectively. That is, when top left rudder was being applied. Very strange behavior that was not there when the engine was set-up with factory baffle. I don't know what to make of that.

There was no improvement to power output. No improvement to noise either. Fuel spitting got on the tank, almost a foot away from the velo stack. I now have two velo stacks for sale....cheap. And one intake muffler even cheaper