New AM/AW hybrid hub wheel fitted and test ridden. Unfortunately it slips in bottom gear on a really steep hill - it may just be cone adjustment. The clutch is new, the gear rings dogs looked OK and the pawls are new, so hopefully it's just an over-tight RH cone. The ratios of the AM (52", 60" and 70") are so useful that it needs to work. Worst case scenario is that I need to find a better gear ring.