k i hope what im about to say makes sense!
the order of footfall for a left canter lead is: right hind leg, diagonal pair (so left hind and right fore at the same time) and then left leg (leading leg)
so yes the nonleading leg will land first if you count them in this order and then the leading leg
the order of footfall for a left canter lead is: right hind leg, diagonal pair (so left hind and right fore at the same time) and then left leg (leading leg)
so yes the nonleading leg will land first if you count them in this order and then the leading leg