Magician %/s (KMS FLY 2 & GMS Dawnveil)

Is either the F/P or I/L Ultimate FA's animation set only to activate only at some interval, while the skill itself actually processes? I ask because, watching a few videos of either class, the animation appears to occurs far less frequently than 60%. I will try to watch closer for an actual line of damage without the animation in my next few viewings.

Also, if you remove Frozen Orb, are you charging the Freeze via Teleport Mastery only?

If I were to remove Frozen Orb, I think the primary Freeze source would be Blizzard's Final Attack, though that only works on a single target? Frozen Orb will be staying though. It is minorly beneficial to %/s, likely because of the freeze effect (~200%/s).