Awhile ago I got stuck at 245lbs in my 5x5, so I switched to doing a 5x3 routine instead. I got up to 295 but I've yet to hit 300 for my 5x3. I seem to stall out at this number, though I did hurt my RC in my left shoulder so that may be this week. I'll give it one more shot next week, then I'll change it if I can't get a full 5x3. I had a week off not long ago and worked back up to 295lbs from 280lbs, thinking I'd blow by this time. Last week 290 wasn't bad at all, then I threw the two 35s on and it all went to hell.
So my question is, what should I try next to get my numbers moving again? Should I switch back to 5x5 and start at 250 and work my way up, or do something totally different? I seem to be lacking the endurance lately in benching, the first two sets aren't bad but after that I stall halfway up.
I also do heavy weighted dips with 110lbs for my triceps along with the benching, and the rest of my lifts are still fine.
I don't want to change my whole routine, just the bench portion.