you can't make a blanket statment regarding reappliny or retaking the mcats. reapplying after tearing it up in a postbacc or masters program, with some new research/volunteering experineces, a new recc or 2, i find that hard to believe thats gonna hurt your chances. on the other hand, not doing anything at all in between application cycles, thats prolly gonna make it harder each time. with mcats, obviously a really bad score can be essentially made to go away with a significantly higher score, but if you look at aamc stats, the overwhelming majority of people do not see a significant increase in scores, but still if you can strengthen your credentials with a better score, thats not gonna hurt you in any way. if you can pull the same score and especially if you do better, i can't see how that will hurt you. it just might not be weighted as highly, but its not going to be what does you in. no blanket statements, it comes to what each individual does. and i think the OP wanted to hear some stories of what people did to keep themselves competitive, i'd be curious to hear some more of those too.