After seeing this tid nit of information from Comp Cams, I may even stick with the solid flat tappet type, that I have in my 428. I've never had a problem with them, and after the first year of checking the lash 4 times through the season, I just relief the spring pressure for winter and then only needing lashed once per year now. If I raced my cobra periodically, I would lash before & after. Other than that, no worries.
(damn,... I really like the sound of a solid roller"