glad to hear it! 
Yep keep going until things start getting worse. You may want to vary the decoy models you use, too - sometimes I find it helps to generate decoys by running ab initio on discarded particles (to generate data-driven junk models)
Also once the resolution improves a bit, you may want to revisit local refinement (with or without signal subtraction) - it often gives a considerable improvement in such cases.
Cheers
Oli