i had a heavy duty model fitted to a single axle van however i sold the single axle and removed the mover ,which remained in the garage for 6 months , as would hardly get any thing for it second hand i decided to fit it to our twin axle , i dont use it for reversing onto a pitch , i mainly use it for lining up the wheel locks ,or once i have the van on the drive at home instead of wearing my clutch out ,i use it to take the van up the drive alongside the garage .it does turn the van in slow jerky movements ,but it does tend to straighten out again unless you lean against the side , its als handy for hitching up ,i would say its a handy asset in my situation ,allthough i could quite eas get along without it