Uxia I'd say half the time infiltrates (Ariadna). Fidays rarely since I can usually just spend the orders to get there more reliably (two levels of Imp means essentially a guaranteed 20" of mobility before taking the shot, or 12" if you want the Surprise). Though with the changes to Imp I may start doing it more often. With Speculos I don't risk it...too expensive to deploy out of place. Other than that, very very rarely.
