[*] Always use a training staff upgraded to blue, I think it's about a 56% increase in XP gains for that skill line.
Do this and you will level it up in no time.
But if it does not, then make one staff in Training, improve it to Gold and use that until you get the skill leveled.
Oreyn_Bearclaw wrote: »Also, for the love of all that is holy, please do not make a Gold Resto Staff in Training. There are better ways, my friend.