How is the fit? I also looked at this seat and liked the key feature how does it work?
It fits great. No gap at the front like the stock seat. I also like the sharp rise right behind my butt. Corbin seats are more firm than most and take some getting used to if you are not familiar with them, but I have had them on my last 3 bikes and I love the feel. With a Corbin seat, I never get the "numb ass" feeling after 200 miles like I do with a stock HD seat.
The key lock is nice and works quite well for removal. The latch pin on this seat screws into the rear seat mounting hole on the fender and the seat latches to that. Installation instructions are on the Corbin site so you can see how it mounts.
I called Corbin to get some material samples and then ordered it directly from Corbin so I could specify the "Shark" texture on the riding surfaces. Delivery took about 12 days because they make them to order if you specify custom leather.