Just saw this thread and read it to see if anyone would recommend running springs. I was thrilled to see that you found exactly what I found...WOW. I had tried a full (and very expensive) Shunyata set up with 5 pythons and a Hydra 8. I plugged that Harley in and never looked back. I will still say it was the best single improvement to my system so far. And I already has 5 dedicated 20amp lines at the time. I now have 3 dukes(power amp, sub, and digital front end) and a Jaco (theater). There is no compression whatsoever on the high current devices and nothing but great microdynamics on the front end. There may be better conditioners out there, but I think everyone should at least try the Harley before choosing a conditioner as the price of entry is fairly reasonable.
