Aside from the fact that seat potion relative to BB can be set in other ways than the seat tube angle (e.g. saddle rail position in seat post clamp, seat post head layback), what I was getting at is how did you relate seat tube angle to long arms/legs and short torso? It seems to me that top tube length, bar size and stem length would be more important to fit than ST angle... I'm not saying I have perfect understanding-- which is why I'm asking-- but I simply have never thought of seat tube angle as an indicator of how a rider will fit on a bike.

I can see slack ST angle affecting the ride character of a bike, but relating it to fit based on body type is foreign to me.