I must of missed the thread on this. Can you post the link that shows your testing between the PR's and BL's?I've compared most every relevant coil and posted most of the results as non-biased as possible. Results not posted were mainly secondary output due to the different designs complicating accurate measurement, and torture testing because, well, I just decided not to for now. There's benefits to both systems for different reasons. If you want 3rd party reviews as technical as I got well good luck sir.