Originally Posted by
Scooper
If the frame is being made to fit you, why in the world wouldn't you want it designed so that you don't need a setback seat post? A setback seatpost is to permit riders to use stock smaller frames without being cramped.
It sounds like you're asking if something that's used to compensate for a poorly fitting frame should be considered for your custom frame. I'd say no.
Why should a custom frame be designed around a zero setback seatpost? I have two custom frames and to be able to use a zero setback seatpost, the seat tube angle would need to be about 70 degrees, at which point there wouldn't be much clearance for the tire without resorting to long chainstays... So sometimes it is just not practical or the best thing to do.
To the OP, do you not have any idea how far behind the BB you prefer your saddle to be? That is what should dictate what amount of setback you need.