I recently bought a Milo 1100 pro,great box – the trolly system is a large,take apart handle,wich you attach onto the box legs on the front,and then pull along – I am not very impressed with this method,its difficult to maintain a proper balance,would prefer a trolly that fits on the rear of the box….so has any body out there,maybe got this alternative system,and is it for sale!!…cheers lads.