I've had several Butterflies. Haven't tried the Damselfly because I have wide post-baby hips and need the width. My only complaints are that the Butterfly is only comfortable for about 3000 miles...then the foam compresses and the shell starts biting you; and that they have to be set up exactly level or they are miserable to sit on. When it's right though, it's the second most comfortable saddle I've ever had. No problems at all with sit-bone discomfort.
(The most comfortable saddle I've ever owned was the Chubby Cheeks, but serious cyclists will have a field day laughing at you
)
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