So I bought one of the old Micro Synths in the old aluminum casings and was having problems with it. in the mean time I ordered the new version from AnalogMan (Thanks Mike!). In the past few days I tweaked the crap out of the old ones trim pot and got it running. So I get the new one today. For 2.5 hours now I have been comparing the 2 ( I can and really only want to keep one). The new one ($265) the effect is more pronounced (more of your guitar comes through less synth like but killer), True ByPass, very clear more of my guitar comes through it. Smaller casing, 9V. 3/4 to half the sustain. The Old one ($150 eBay) Less pronounced effect (more Synth like and killer), Not true by pass. Large retro casing 24 Volt. Tons of sustain. The sustain is killing me on the new one it just does not hold to it. Like I said 2.5 hours of tweaking and A/B ing the 2 and I can't decide. Any thoughts?