Richard
What an amazing time saver for you - there's your poor old dad doing the digging with the obviously hugely heavy machine whilst you stand around taking pictures!! I wish I had a dad as useful and generous as yours!!!
Cambourne 7, why are you going to buy a mantis tiller for your raised beds? Surely the thing with raised beds is that as you don't walk on them, the soil is not compacted and the digging/rotovating actually damages the good work of the worms and micro organisms do in breaking down the soil and creating a proper texture?
Old Bird
;D