Do deleted activities count?

If I log an activity on the watch, then saves it, but later deletes it, will it still count regarding training load etc?

Reason for asking is that I've got a trainer and three bikes with different power meters that I would like to calibrate between them, so for that purpose I've picked up a pair of used Rally pedals as well...
So the plan is to log the "bikes" with my Edge as usual, and connect and log the pedals with my Epix but then delete that activity right after I got the .fit file...

Will that mess things up, or do physio true up take dual recorded sessions in consideration? Any better idea to compare pedals vs "bikes"?