I've upgraded my Super Cobra 200 with this rod. I felt the difference immediately. I'm long time drummer who is used to play on two separate kick drums with single pedals on them. About a year ago I've switched to a single drum kick with double pedal and after that I was suffering with the precision in some patterns. I was thinking the problem is in me, getting old or I don't know what. So I tried warming ups, double kick practice and etc., stuff I usually am not doing because my routine is I directly start playng songs and after first two I'm good with my warming. The additional warming exercises were helpful but I think it was a thing more related to adapting to the difference in the pedal feel rather than a true warming up.
Anyway this thing costs every cent, very good upgrade!