Same plane turnaround in YUL to/from the US
I'm trying to position myself to YUL in order to start an international itinerary. Both segments will be on AA(LUS), same plane with a turnaround time of 35mins. I know MCT is 1hr/1:30. However I'm wondering if it would be doable, without luggage of course. I know I need to use the US pre-clearance. I've transited in YVR before and the experience was rather quick and painless.
Does anyone have experience with connecting to the US? Are the formalities rather extensive or could I get through in 15-20minutes? Any thoughts or suggestions would be greatly appreciated!!