Roller lifters: Hyd or Mech?

[MEDIK418]

With all the roller lifted vehicles we have here I dare say there are close to 400,000 miles out there on hydraulic rollers and nary a hiccup in the bunch. Much of this has been at or near redline, (two teenage boys with really BIG feet) Think of it this way, mechanical rollers are going to need adjustment every few months depending on how hard you run it. when you take into consideration how much gobbledigook you have to remove to get at them I would wonder if it is worth it. Mechanicals will let you run bigger numbers and higher redline but is the rest of the engine up to that level yet.
As far as how often, I've had to do it on previous cars as often as every 6 months to one occasion where a 300 mile trip running in the twilight zone opened up all of them in about 4 hours