clive i can recomend the sidewinder i have had 5 roboteqs all very good UNTILL they blow up you need an exchange, i only used on 750 bosches so thats all i would recomend

Now if you plan to get repairs on them when they do blow (if) i would go with the Watty because Ian can repair or swap in this country as the poxy import duty can be £40 a time on top of repair

its all down to what set up