I know this is bringing back an old thread from the dead, but I was directed here after reading another newer post.
I'm glad to see the detailed and varied experiences had by fellow riders with this company aired here. We all need to know who is and who isn't a trusted supplier when parting with our hard-earned money. Luckily I had my impression with them made BEFORE coughing up the cash for a custom seat I was going to have them do for me some years ago.
Not to pile-on, but let's face it, there are a LOT of negative stories just on this forum about these guys, and we're just ONE small community of riders...people need to be informed about companies like this:
Back in the mid '90s, my wife and I had driven through central and northern California on a vacation, and at one point I realized we were only a few miles from the Corbin factory. At the time, I thought they were awesome, since they had done an amazing custom job on a seat for me on an '83 Suzuki GS1100 I had a few years earlier, and I wanted them to do another custom job on my new Ducati. Besides, I thought it would be cool to actually see the place, especially since we were so close by (it's about 400 or so miles from my home). My wife gave me a, "sure why, not it?", so off we went.
We drove over and walked in the front door, explained our situation, and asked if we might be able to take a quick walk or tour through the factory. Between the receptionist, and the manager(?)/administrator who came out to briefly talk to us, we were basically treated as though we had leprosy! We were also very bluntly told there was no way we could be shown the factory - he acted as if we'd just asked for the secret formula for Coca-Cola! Even the look we were given when we first walked into the "showroom" (not much of one, back then anyway) by the receptionist was incredibly dis-interested and indifferent, accompanied by a very deadpan "hello" (in fact, performing that "hello" became kind of a catch-phrase with us for years after).
And please understand, we were an attractive, fit, friendly, professional couple in our 30s at the time that drove up in an Acura, not some hairy, dirty, outlaw Hells Angels that had roared up to the front door (no offense to any Hells Angels here...

).
We left the place dumbfounded, with a pretty bad taste in our mouth - still not really sure what the problem was, but it was a major negative in what was otherwise a very cool and fun vacation, and completely killed the idea of having them do a seat for me. Unfortunately, that experience will always be in the back of my mind when I consider their products. Hearing what other people have gone through with their complete lack of customer service only serves to promote that feeling.