As always, here is my honest and refreshingly candid opinion. Resonance needs a great deal of work, I.e. it down right sucks. My main reasoning for that is this, several items , like Slippers of Spider Climb, must be invested and then only ever give a benefit after another totally separate RP is spent; no primary benefit. IMHO, these items are not worth much and seem like the Pathfinder developers were nerfing for the sake of nerfing. Lastly, the Alchemist should be completely severed from dependency on RP. Another nerf for the sake of nerfing.