Yes, Jeff I've read that and they are there, but LR4.2 isn't offering them as an option.
I've even tried copying them to the four other places on the system the lcp files seem to end up without any luck.
ALPC didn't report any errors when building the profile.
Is it possible that having more than one profile for the same lens*, even though they're named differently ?
I'm profiling a Samyang 14mm manual lens, there needs to be radically different vignetting correction for different apertures. As it's all manual there's no way the EXIF data for any auto correction will work.