Hate to triple-post but I already have a concern about this figure. Removing his rear-rotor in 'copter mode is a vital part of the transfomation but it does involve an incredibly non-repeat-transfom-friendly aspect.

As you can see in this picture the rotor section has little black pegs to clip onto the helicopter tail. This little black pegs are sloped towards the front meaning that the rotor and the 'copter are easy to push together but harder to pull apart.

In this picture you're looking at the rear of his 'copter mode from the underside. As you may be able to see (sorry it's not a great picture) there are two hooks at the very back of the 'copter. These hooks hold the little black pegs on and it takes quite a bit of pressure to remove the rotor from the tail. After doing it just a couple of times the hooks already have a small white pressure mark. Each transformation puts increasing strain on this part, I suspect. Given Arcee's thumb issue, I'm more than a little concerned about this.
EDIT: The Japanese instructions have a little warning box that more-or-less translates into "The joint is tough. When you do this part, please be careful." Hmmmmm.