As always, personal preference should be the main indicator here....that said, I have played MP 57's with Proj X as a 12-14 handi the last two years and I just traded them in for MX 200's with the Dynamic Gold XP shaft. I have struggled to break 90 this year and since the I bagged the MX 200's I have shot 84, 79, and 39 (front only). Yes, the shafts are lighter with a higher ball flight than my old shafts.
The take away is they are so easy to hit....its a joke. These rounds included mishits that ended up just off the green and or fringe. I regret fighting the 57s for so long!!! I am happy as a clam.
2 cents. Yes I know I am too lazy to update my 'weapons'.