I'm sure this has been suggested before, but I really don't see why Truth of the Mountains and Truth of the Forests are not castable while mounted like the Call spells are. It's incredibly tedious to have to dismount, cast the truth buff, then remount if I switch from one gathering to another.
Alternatively, just make it a passive trait like Triangulate is. Have it automatically activate upon switching to the class, take out the muss and fuss.