The Superior is making some very beefy shafts now,,, I was checking out the D60 shafts at SEMA and they are really nice,,,,not sure about the 44 shafts but I think they're doing them too.
Just get the CTM joints from Jack at ctm,,,,,,,,get'm from the source,,,,, plus Jack is a cool guy to talk too. He can make you some 300m shafts if needed.