Why not just junk resonance and resolve the issue by adjusting the cost of wands and other items?
If the problem is people using CLW wands all the time, just stop letting players buy them with Prestige in PFS and up the cost. If the issue is nobody using higher level potions, then adjust the cost of potions.
You've already got several balancing options that do not require you to cludge a secondary rule system on top of an already complex game.
