well technically this is suppose to be expected since the set comes with a gmk set, gmk set generally make you wait for quite a while. so yeah...
I didn't get the GMK set - wasn't interested. I though the hierarchy was something to the effect of
First Shipment: No GMK, Polycarb
Second: (?) GMK, Polycarb
Third: (?) No GMK, Aluminum base
Fourth: (?) GMK, Aluminum base
I could believe third and fourth are in the wrong order. Or on identical schedules.
I didn't order mine to get it quicker, I just ordered what I wanted. It was an added perk that my selections mean receiving it faster. That may still be the case but I'm not excited to wait till October.