Solid lifter / Hydrualic Cam

Valvetrain Tech: Lash Is Much More Than Just A Little Gap

In this article they talk about this. Has anybody actually done this. I have a noisey Comp Cam HL series hydraulic. I did buy a Solid cam and lifter set but have held off because the car runs awesome (5 years now) I also don't like the bleed down when starting after it sits awhile.
Just curious .