If you switch to 10s, you're toast pretty quick. The volume gets too high for recovery when done 3 days/week, and the weight has to be lowered too much to accommodate. If you're worried about resting "too" long between sets, don't. This is not metcon, it's strength training. If you want a metcon effect, get it from a metcon workout, not by slowing your progress on strength days by insufficiently resting between sets and getting therefore unnecessarily stuck.