I haven't talked to him lately, but he does this all the time. He falls behind, he catches up. He falls behind, he catches up. So far, to my knowledge, he always catches up, eventually.
I haven't looked at the newer models, but I bought mine a few minutes after Josh put them on his site. I loved it. But, alas, I played with the GMT hand too much and the movement became unstable. One of the best reps made.