I dont have any B4 shafts Dave
Axe, use the standard silver B4 shafts in the front of your B44. All you need do is screw the ballcup thingy back onto the threads all the way, then unscrew it two whole turns (the B4 shafts are afew mm shorter than the B44 gold shafts).
Ive done that on all my B44's without issue after getting fed up of snapping the gold B44 shafts all the time!