How many hours/miles do you put on a new saddle before you decide to take back?

[teawoman]

I wanted a longer distance saddle, and for me, the pain and ugly would set in at about 3 hours of riding, so I was happy when I managed to do 7 on a new saddle. Made it difficult and expensive to try out saddles, though.

I find, like the others who've posted, that some depends on the shorts, though, especially on longer trips. I did 320k over 3 days and found out that one pair of my 3 didn't work too well.