Chris,

I would like to suggest that the connections to the oil filter may be reversed. most of the time the oil goes into the OUSIDE of the filter first. it returns to the engine thru the center. I have seen the reversal of these before. often the filter breaks internally and it seems like things are ok. The better the filter the higher pressure it will withstand. be sure your lines are routed properly for the filter you are using. To burst an Airquip hose you had VERY high pressure in the line. that would easily cause leaks.

Bill Jepson