Diffraction be gone

Let me say up front that I am not much of a tweeker to start. I will play with cables, power conditioners that sort of thing, but by and large I like to leave well enough alone. I have an older house in the NE and over the last couple years due to power upgrades, re wire of the house and related domestic issues, my space for equipment and placement choices have been limited. More over, while I have tried to treat my rooms, lets just say that most room treatments do not have a high acceptance factor.

I found Diffraction be gone through steromojo. The review is from my experiance spot on. I picked up a pair of pads from Diffractionbegone for my ATC 20-2 ASLT's and have to say I was somewhat shocked at the overall improvement. Cleaned up some of the image problems I was having and tends to allow what is on the recording to come through. (My best guess is that some of the high end related artifacts are absorbed by the pads allowing me to hear more from my listening position) but that is more or less a guess. On the other end of the spectrum I noticed a tightning of the mid bass. Odd as I had not expected it. Needless to say for less then 100 bucks it was an upgrade well worth the investment, for my monitors.

My question for the form has anyone else tried these, and if so what have you found? Mini monitors would seem to be ideal, but I am wondering if anyone has given these a shot on larger speakers?