I would argue that a change in trigger pull this significant really calls for a "Transition Course" to teach people the new trigger. Not sure what level of training they'll even be able to offer, considering their logistical issues.
FWIW, the course we're preparing for a Striker Fired Transition is heavily focused on trigger discipline. Heavy use of 1, 2 and 3 shot drills to really maximize first shot discipline, and control of the trigger. And drills that will emphasize "backing off" after the reset during a string of fire. I think this is the only useful purpose of DA/SA to Striker Transition training.....and why it must be serious and mandatory. It should be about teaching them to shoot, and NOT shoot, the new trigger.