mine is a Sargent cycle seat, v comfortable, grippy and dished at the back. I did retro fit an earlier Corbin seat from a 2000 model, but its a bit short for the 02 model, it was very firm and made from leather(the corbin), so would need treating if it gets wet, and it was really heavy. The sargent seat is very light...but I returned the first one cos it developed creases, the one I have has creased a bit too but it should settle down. Both types are very well made(tho the sargent is better finished)
.I would go with sargent(but if it creases send it straight back).
They also come in 3 diff types of material (synthetics) or punched leather(really trick-) PS-they are not exactly cheap, but the corbin are pricey too.
HTH
CK