No mana use casting Combat training on pet during macro

Honkwomp

On all clients, if you make a macro that casts combat training on a pet, at random times, it will cause combat training, give you the combat training message, but not use any mana.  The macro casts combat training 7 times and then meditates.  Once it gets like this, you can go all 9 loops sometimes that the EC client allows and not use mana.  I also had this macro going one at a time on the classic client and it does the same thing.
I have never seen a skill gain when it is like this.

The EC client macro I got off the forum at Stratics