Rob, Thanks for the info and will contact you...Only drawback is that I really don't care for the tuck-and-roll version...Some have said it is not as comfortable as the regular seat??...I am 74 and really want the lower seat as I have a fairly short inseam and have recently developed some Arthritis issues with my left knee and think the Mustang seat will help....Any thoughts on the two types of seats?? Thanks, Bruce