Game Mechanics: Pet proc's

[Scrubosaur]

This is specifically directed toward necro pets but may also be the case with mage pets...but the lifetap proc for necro pets doesn't seem to fire very often. I was wondering if the proc change that happened awhile back affected the proc rate of pets too or maybe the proc per minute is just set too low. I tried to research pet proc rates but didn't find anything conclusive, but I do remember having my pet attack green cons just to heal up because it was faster than having him sit.

Right now the proc rate seems to be maybe 1 proc every 2 mins (for 53 necro rogue pet) and I would think due to the amount of the life tap that it should be around 2-3 procs per minute especially considering the pet is dual wielding. If anyone else has some data to share on the subject it would be appreciated.