I used my 35L last night for the first time, but it seemed to not be the lens I needed for what I was doing, and so I will have to try again tonight. Just about everything I did with the 35L could've been done as good or better with a standard zoom - which I finally brought out halfway into the shoot solely because I could zoom in and out, and the environment didn't call for narrow DoF or f/1.4 anyway. A somewhat disappointing first try in the field, but the 85L saw almost no use either so it may not have been the lens' fault. Just the wrong environment for a prime and the right one for a zoom.
I think I'm so used to getting that range with a zoom that I'm really not used to working with a wide prime. I've never had a wide prime before in my life, so it feels really awkward to use. That's probably why it seemed like the zoom was better for the occasion. Gotta force myself more.