While so far I am digging the 50mm 1.4 and the 85mm 1.8, I don't think either are really the solution to my original problem/issue. I brought both of them along with both my bodies on a camping trip with the fam (figured why not torture all of them when they are dirty and not wanting their picture taken...lol). All shots were candids, with the exception of a little sunset session with my gf (all silhouette shots though).
Findings --- f1.4 is hard to use. On many of the shots, the focus just missed (on both bodies). I did not play with the aperture at all because I wanted to really get a feel for them wide open. When using the center focus point i had more success than using the outer points, but even then it was hit or miss. Especially when trying to get a crisp shot of my gf's 3 year old niece, she just moved too quickly. I did some other semi-posed shots, of my gf at 1.4. Profile shots, focusing on the eye, and yeah when the focus locked right her eye was damn sharp, but, even her nose was falling off into the bokeh. So movement + wide open especially on the 1.4 ain't gonna happen. Did some reading today too about focus shift, which makes sense especially seeing the results (neuro, tell me more about this!!!!) My main goal with this purchase was to find a solution to the 7D dilemma for weddings.
After looking through all the images I have played with the the aperture a bit more. The 50mm starts becoming more candidly useful at or above f2. Similar with the 85mm, though the 85mm did have more solid results wide open (If I am right, its because there's a little less focus shift at 1.8 than at 1.4).
Which makes me question a lot of things... I do really like these lenses and yeah they will have a place in my gear bag, just not as much for the thing I was trying to find a solution for, that being wedding work, specifically trying to use these wide open on my 7d as to bring the ISO down so the files from the 7d would line up a bit better with files from the mkiii. I can see these primes being used for the wedding ceremonies where there are many silent and still moments. But the reception is a whole different animal. I don't see myself using these wide open there, more likely I'd be at f4ish range. I will be able to get unique images from these lenses in that range, but on the 7d I have to figure a new plan.
Maybe I've just gotten too used to the flexibility the mk3 gives me at high ISO's. For the 7D, I may just have to get creative with strobe/on cam flash (which is stuff I was working on prior to the mk3 purchase...)