I pretty much just give out, but I don't lift til failure very often. I bench wide grip, and try to focus on pecs.
I would focus on working my tri's harder. Once they catch up, problem solved. If you keep trying to work chest harder, you'll always have a triceps issue.
I use my compounds to work more muscle, but I also use them to identify weak links that need to be worked up. But now, that's just my opinion and the way I do things. Maybe a few of the more experienced guys will chime in.
I try to have a fair amount of trouble with the last two or three reps, but I don't really strain. I like it when I stall at the sticking point and really have to focus to push past it. Makes me feel like I did something.