Really? It bugs me whenever I play with the toy as I can't make him swing his sword above his shoulderline easily... I gotta kinda pause and shift things about a bit. It may be fine for posing, but irritating for toy play. Earlier today I was making Drift fight Saesee Tiin* and MagnaGuard and when I swung his right arm (holding the sword) straight up the shoulder popped off. It was easy enough to pop back on, but it's the whole inconvenience of it.
If the shoulder pops off due to excessive force during play - fine, I can live with that. But I find that Drift's shoulders are just self-inhibited which makes it tricky to move the arms about. It's fine if Drift is fighting at mid to low level, but whenever he blocks a high level downward strike, or if he needs to raise his sword up to execute a high strike, then things get annoying.
Another nuisance is the lower legs which don't really lock in firmly, so the shins/feet easily fold out. Again it's quite annoying during toy play when he's striking dynamic stances, throwing out kicks and sliding about etc.
The sword handle is also a little bit loose which makes the sword spin around a bit when it's swung (which is frustrating because the edge of the blade doesn't keep facing the target after the end of the stroke). Still... better than having it too tight like ROTF Bludgeon's. And it's not too loose that it falls out all the time.
-------------------------
*Drift is able to block light sabres through his sheer awesomeness.