b17 imperial was my favorite saddle until it sagged really bad and is not ridable.

a regular b17 is really comfy for me out of the box

i have a swallow that is very comfortable out of the box

i have a pro that ranks last out of the box, however i'll still ride it over any non leather saddle and its getting better with age. I've done centuries on used pro's.

is it worth the weight? Depends. Are you so light and in shape and racing that it really matters? most people arent and if you were, you probably would know enough that you would be in c&v and asking about leather saddles.