Yup... IMO the Crystal Pocket variation is way better than the Arch... the Arch just isn’t steep enough to really need to use the crack (except for pro)... and the CP doesn’t require an extra belay to get to Lunch Ledge... YMMV but I always go CP unless it is crowded and no one is on the arch...
Fun Fact, you can link the base of the Arch to the Thread with a 60m IF you only place a few pieces in the arch, then leave the arch at the Mailbox and traverse right, right, right, coming in just above the CP variation... then up to the Thread.... it is a real rope stretcher with long 5.3 runouts, but you can eliminate the awkward Mailbox belay this way and get the better part of the arch... a 70m here makes life easy... but I always do it with a 60...