Ray, I do know to check them often. I run a solid roller in the race boat and go through them sometimes twice a day......and go through them once a weekend on the southwind....maybe more if they are coming lose. I havent had them come loose on the southwind since I put the crane golds in there. 
the stud girdle on the race boat helps keep them in check.
i run a solid on the southwind because its what came with the package deal when i got the heads from Brock. The 990's were set up (springs n all) by claysmith for the solid cam..it was a combo a customer of his ordered but then backed out....then i came in and bought it. ....so I just stuck with it. yeah, its a PITA to have to go through lifters on a purely recreational roost thrower, but it works for now.
btw - checking them hot is the correct way to do it. try doin it between heats while reaching around hot headers. good fuckin times right there buddy. 
LOL! I damn sure that's fun! And no, I don't wanna ever do it on dry headers! I got probably a fraction of the header burns you have over more trivial and stoopid stuff, thank you very much bro!
Yeah, traditionally, HOT is how you're supposed to do it, but with manufacturing techniques and tolerances we have today, I don't know if that holds as much water these days, it might, but something a cam manufacturer would have to address.
ON the Race Boat, you have no choice, but you're on your own there! LOL!
Ray
