My advice
My advice would be to drop the Barbell Bench Press entirely, I have never did the flat bench in my whole training career and I have a great set of pecs. But if you must bench I would suggest you move toward doing it on a Hammer Strength Press. Another option drop it from your program forever, it did not hurt my development. If you do that then I would use a combination of BB/DB/Hammer Strength Decline Presses, BB/DB/Hammer Strength Incline Presses, Chest Dips, and for isolation work keep to machine flyes or cable flyes. Also another good method to use is pre-exhaustion on your chest days.
Here is an example of my chest workout:
Cable Flyes 1x6-10
Decline Press 1x1-3
Hammer Strength Incline Press 1x4-8
The first two movements are done in superset fashion always with minimal rest between in either a pre-exhaust fashion or post-activation fashion. I follow Heavy Duty High Intensity Training created by Mike Mentzer so that is why such low volume.
The first way it is written would be in pre-exhaustion fashion, the example that follows rewrites it in the post-activation fashion:
Decline Press 1x6-8
Cable Flyes 1x6-10
Hammer Strength Incline Press 1x4-8
Hope these suggestions help, but I would give pre-exhaustion a try, you wont be able to press as much as before but it will definetly save your joints and it doesnt hurt to check your form once in awhile.
If you need help finding info on pre-exhaustion just google it or type it in a search on bodybuilding.com
Daron
The Heavy Duty HITman