Sagging polyurethane mounts?

I'm having an issue with the engine sitting to low. I can pull the engine all the way up, tighten bolts, but when I let the engine down I can see, specifically the passenger side sag back down to same spot. These are about a year old and the energy suspension brand. Would I be better if I got the shumacker spool mounts with their poly inserts? I think this issue is also causing my issue of my TTI headers hitting the pitman arm