I've always wondered this... If you purchase, say, pet fortitude AA that upgrades pet AC, hps, avoidance, etc will the existing pet be automatically upgraded or does it require a new pet to be summoned to gain the new AAs purchased?
Companion's Fortification? Once you get it, you can get a hotkey Pet Buff. It only lasts about 10 minutes, so if it runs out, hotkey push it back. The higher the rank, the shorter the recast.