Roller rockers will drive you crazy with solid lifters. The constant loading/unloading rattles them apart in no time, and the noise is maddening. I know a half a dozen guys I've warned about this, and they went ahead and used them,for a while. Even bought a few sets when they chucked 'em!
BTW, just about every factory engine with roller rockers has a few rollers in the pan, come oil change time!