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The Stack and Reach to me revolutionised bike fitting, however you're right about this; the seat angle will need to be taken in account as the massive frames tend to be slacker that the majority of customers end up with their saddle set far forward even with an on-line post.
Ditto to small frame with steep seat tube, massive set back needed.
edscoble-
The Stack and Reach to my revolutionised bike fitting
Yes I'm a bit clearer on that now - as long as you have the saddle position relative to the BB it's super useful.
But not so useful if you are just comparing two frames.
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Yes, that would probably be the case for me on the Supersix. The bikefit also supplied an effective seat tube angle of 74 degrees, so the 72 degree seat tube would definitely call for a saddle set far forward.
Howard
Thomas_M
What did you parents feed you!??
Kidding. I used to think Stack and Reach was a great way of sizing frames...but when you dig in to it I think it falls down when the angles change across sizes. Maybe.
I think particularly large or small riders, or riders with 'shapes' that aren't typical of their gender need to sling themselves over possible contenders as the numbers don't really work for them.