Rocker arm geometry problem

I have hardened valve lash caps on my valve tips in my 360, that can extend the valve tip by as much as .050 and protect them from wearing if youre running a solid cam

Daredevil I'm not running a solid cam but now that I think of it if the lash caps extend the valve as much as .050 maybe I could just install a set of them to get the height I need. I know I'd also need retainers that accept lash caps. It sure would be a lot less work installing a new set of retainers and lash caps than pulling the heads and going through them again. Cheaper too. But I wonder if that would give me enough? What do you guys think about this idea?