How does he plan to correct the different cam profile between hydraulic and solid cams- - - - -specifically the difference in the clearance ramp rate and duration? The hydraulics will begin lifting the valve several degrees ahead of the point where a solid would begin the lift. Of course, it might be a poor (or dumb) guy's way of getting longer duration.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!