By KOPS I mean getting whatever the optimum knee over pedal position is for the rider right. In my case I actually prefer it if my knee is 1 cm behind the pedal axle. But, my points were that you need to consider reach as a comb. of STA and TT length, and also, as reiterated by Kathi, you need to be sure the STA will allow whatever the riders appropriate KOP position is to be established. Small women are more sensitive to all this crap, cuz manufacturers mess more with frame angles on smaller sized bikes so they can outfit the bike with 700cc wheels. If the bike doesn't fit, your GF will not like cylcing, its as simple as that.