Generally the first step is to set the saddle position followed by the stem length. If you really like the fit of the Scattante. I would check that saddle position compared to the bottom bracket. I find it easiest to measure, using a level or plumb bob, from the pedal spindle to some fixed point on the saddle. Get that measurement from the Scattante then measure from the saddle to the bar and duplicate that on the other bike. Record those measurements.