Excellent idea. You're kicking ass, Beast, but you probably do deserve a few days off and some lighter training.
Here's a thought...
Keep gunning for the 315 for your 5x5 bench. You could just ease off failure on most everything else; you'd still be working hard, but you'd leave something in the tank on inclines, triceps, etc. Most of your energy would be conserved for getting that 5x5 bench. It'd be the priority.
Then in two weeks, after you've reach the bench goal (which you will), take a rest--say, 3-4 days completely off. When you return, take it really easy, not training even close to failure for the following week. (Example: on bench, maybe work up to 275x6 at most.)
By that point, a little over three weeks would've elapsed, and you'll not only have that 315x8 bench set in you, you'll be all healed up and ready to kill
everything again.
The hardest part would be restraining yourself during that period

LOL. I sympathize...I know your injury's had you down, and you've wanted to tear walls down to blow past all your old PRs.
But you can hold back a little for awhile; just know you'll still get the bench goal you've been after, AND the ensuing rest/lighter work will take care of the "no pump" days and flatness you've noticed.