The Corbins are great lads (and ladies!) I fitted one to the Blackbird not long after I got it, and the difference is phenomenal. Ride with the Corbin for an hour, and thrown on the original and you'd wonder how you ever survived.
They are however, silly money. I got mine from a bloke second hand, as new, but for a hell of a lot less than new.
Very comfortable, but not worth the money. (and as someone said...... "On a Storm??????" Next thing you'll be looking for a Bird!!!!!

)
RQ.
The Stig of 2 wheels as well as 4 !