When I do keyswitch D1 on strings (e.g. vlns1) with a very short sample length it sounds almost like "sautillé". When I do switch D1 on the Guarneri solo string the "nature" of the bowing is different. Doesn't sound like "sautillé".

Why the difference? How to solve this into a more "sautillé" sound, I don't know how to do this.