sound like you have had the same problem its a bummer but
worth it in the end
i got mine cheaper after doing a favour for somone so i cant complain too much
off the road have a scale of weights when you order from them presumably to get the spring rate right {sic]
i should add that i ride off road with me buscuit tin fitted on the back so that doent help either
anyway if you a bigger boy and take luggage a 90 spring is the one to go for chaps