Thanks everyone for your replies!
I like the "slide" language approach and plan to work on that for next time.
I'm less fond of the sashay term in this application as, IMHO, contra dancers don't know what it is. With groups that do a "Roll Away with a Half Sashay" and even when callers prompt the full sequence, it usually comes out more like "ROLL AWAY, with a half sashay" (almost inhaling the last bit). In my experience, overall the language seems to have evolved to more just saying who rolls whom and the rest is expected, just a part of the "Roll Away". The instances of a separate Sashay are extremely rare, so working to get them to understand the sashay itself would be another incremental step.
BTW, that's why in this recent dance of mine I call the A2 move a slide:
Feeling Gravity’s Pull – DI – Don Veino 20180710
A1
Neighbor Gypsy, Swing
A2
Gents Swap Places (passing left) and face out
Gents Loop Left *WHILE* Ladies Slide Left+ (so each move into Partner’s place)
(inside hands) Ladies Gate the Gents 1x
[+Alternative for the Ladies here: Walk forward on the slight left diagonal to bounce back into the left hand position next to Partner Gent]
B1
Pass Through across, Partner Swing
B2
Gents pass Left for a Full Hey (EXCEPT Ladies Bounce Back the FIRST time)
Thanks,
Don