What sort of headstock have you on the manitou? Our first (13 plate) manitou had perfect geometry but the second one cherry who do the pin and cone conversion had changed it but I sent it back and they made me another one like the previous.Great buckets. Should last you a good while
Mine is 26 years old. Not as big as that though. 18 to a load.
Started life on a matbro ts270 and on its third manitou.
Still on pin & cone and geometry not quite perfect as a result. Does the dribbling over the front if not careful but simply solved by raising bucket up to eye level then crowding back fully again.
Seems a bit much to me but they are a very capable machine. Apparently on here someone said they can lift 4 ton bags of fert off a lorry with one
we run a 3 cube slewtec on our 531-70 at work and tbh its possibly a bit big. as it struggles to lift it the first foot out the heap and bucket roll back force is poor. think a wider but shallower 3 cube bucket would be better. Also wouldn't rate the slewtec overly high for a jcb as doesn't crowd back far enough so grain leaks out the front unless you drive around with it above cab height.
