Hey squatter, great effort in this log, as always.
Sorry to hear that your bench isn't progressing how you would like.
You know, with me, whenever I use a routine with higher volume bench press, such as 4 straight across sets of 5, I tend to stall out. And often I find myself regressing until I do a reset. Only to progress a bit and stall out again.
My point is that, I know I have experienced the same thing you have with the same bench rep scheme. A reset helped, but I stalled again after a couple weeks.
So, a reset is something you may consider.
Or.... You can consider dropping the volume a bit. Maybe only 3 straight sets of 5 or 4 ramping sets to a top set of 5.
Not trying to criticize the routine you are using or question it or it's author, I'm just sharing what I myself have personally experienced.
"The fastest way to get strong muscles is also the fastest way to make them bigger. We know what works best to make them strong in the shortest time possible. If you want to get big, do the thing that makes them strong." - Marc Rippetoe
Zdravko Veselin Gaeta
I am not a powerlifter nor am I a bodybuilder. I just want to be big and strong.