I have used the stock reg and an Ego 5 reg on my ION, and the guage moves a lot less under high ROF. Figures or no figures, real world testing is the best out there.the stock ion reg has the fastest recharge rate out of any regulator out there... stock or not! ive seen the figures!!
when it comes to consistancy and adjustment... thats where it isnt as spot on as others but still very good!
hell why you think they use it on the new shockers!?