On weekdays, at least from what I can tell;
The LSI flights are all operated on an ABZ based E170 which operates W patterns to EDI & GLA in the middle of the day.
ABZ-LSI-ABZ-LSI-GLA-LSI-EDI-LSI-ABZ-LSI-ABZ
All other flights (ABZ-KOI, GLA-SYY, GLA-MAN) look to be on the J41.
ABZ - 1x E170, 1x J41
EDI - None
GLA - 2x J41