If you are looking for a higher PR single, then my vote would go to the Russian Percent Program for the BP.
It starts and looks pretty easy, but don't be fooled, once you get to 6 sets of 5 reps and then 6x6 for the volume phase, then tapers to higher weight and low reps for strength, it gets tough.
W/O is at bottom of page. Best advice is to start quite modest with your current max. It is not unheard of to get 107% maybe even 110% gain.
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The 70%x2 and 75%x2 are generally W/U's, but I would not skip them.