I had ordered a Koobi PRS Enduro saddle almost a year ago and think it is great. The saddle on our tandem is starting to show signs of wear so I decided to go ahead and purchase another Koobi. Last time when I ordered, there was a small cosmetic flaw (that I didn't even see), but they pointed out and gave me $10 off the purchase price. This time when I ordered the same saddle with manganese rails, they upgraded it to Ti rails and took $10 off my original cost -- is that cool or what??? They seem like a great company and I haven't had any problem with the saddle at all. The saddle also comes with two additional sets of elastomers. I don't think to many companies would do something like an upgrade and give a discount to boot.