right now, i just crossfit, so ME oly days fairly non existent. i tailor wods to be relatively short, and stay away from those movements which i can't execute with good form at high intensity (i.e., high rep snatches at some intermediate load with poor form = back ipain). ill work ohead sqs, snatches with PVC/training bar into the warm up, do a wod with things i can do full rom (which may include hang power cleans/snatches), and then stretch the hamstrings.
its worth backing off oly lifts if youre doing them with poor form. once you have the flexibility, youll regain your strength (and likely surpass it) relatively quickly.