Joined: Aug 2008
Posts: 13,140
Likes: 2,163
From: Ann Arbor, MI
Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII, 23 3T Strada
I tend to agree that unless there's some reason to change it, you certainly don't need to.
If the seat is where you want it, if you don't have problems with the post head flaring the saddle shell, if rail flex isn't an issue, and you don't mind the looks, then what is to be achieved by switching posts?
If you've been wanting to swap your post out anyway for whatever reason, then I'd say yes, go with a setback post because, first and foremost, it'll look better! Balance, feng shui, and all that.