To increase the effectiveness of doing the 5s at the same weight for an additional 2 weeks (if this is what you choose to do), add dropsets to your final work set of each exercise.
What this means: say you are doing 2 work sets (those performed after warm-up, the "real" ones) of incline press, and say you are using 100 lbs for example. Do your 2nd set, then as quickly as possible, do another 5-10 reps with about 30-40% less weight, which would be 60-70 lbs. This gives you 10-15 reps total. You can drop the weight again & do another 5-10, if you like, but don't push too far around failure; you are going for "burn" here.
It helps with free-weights, where you can, to set up the weights on the bar so that you can quickly strip off what you want & leave the right amount, as quickly as possible. So say you have that 100 lb from above, and you'll do your dropset with 70 lb. Put a 35, a 10 & a 5 lb plate on each side. Do your work sets, strip off the 10 & 5 plates off each side & do the drop set.
Hope this makes sense & helps. Good luck!