I have a problem while dumbell pressing. i almost set a PR on wednesday, lifting a new weight for any reps (FYI using 30kg/66pound dumbells). i bounced the weights into my starting position and steadied, then dropped and pressed. left arm put the weight up fine, right arm stopped at 75% of the way up and i failed after about 10 seconds in the position (no spotter). im left handed btw. anyone else have/had this problem of strength inbalance between their dominant side? what can i do to correct it. 1 handed presses or more barbell work?