I had a butterfly on my mountain bike and loved it. I did the Lake Tahoe Century on it and still loved it many hours later.

I hated it on the tandem though. It just didn't work for me in the less upright position. I couldn't feel my sit bones at all. I have a Brooks Finesse on the tandem now and that has been great. The place we got our Brooks saddles from offers a money back 6 month guarantee, no questions asked. I like that policy a lot.

Veronica