ya that could certainly be true, the problem is it seems there is a good chance power 5 and power 7 are the same exact thing, they just make more profit off the 7...my last 2 batches of oil since i got my case of power 5 have been my best runs yet so i am not really keen to spend 20 extra bucks a case for power 7 that might be exactly the same as what i havego 7 if u can, no point aiming low, right? or vector, never heard of lucienne, but anything better quality will help end product, right?