I have to "cheat" and add two inches to her inseam for the system to work. For arm pads reach , no problems there as she has a long torso.
Notice: I have the same problem with Argon 18. On their chart, the size XS states the minimum saddle height is 64cm, but at Argon 18 they say minimum saddle height sould be 67cm .... hum :-/ !!