Just thought I'd mention that after buying and trying the Gemini III that John Miller recently sold to me, I can honestly say that it's the single easiest piece of kit I have ever used to obtain the definative 'That Sound' . Somehow it achieves the goal with any one on my echo machines and with any guitar amp. So far I have tried it with my Mesa Boogie Mk III, the Peavey Delta Blues 115, Vox AC-30/4, Vox VT-30 Valvetronix and Vox AC-4. The echoes I tried with it are the H&C, eTap2 valve, Zoom MS-100BT, ESE Ecomatic and my regular Vox Tonelab SE. Similar results are obtained with an Ariab box, but the Gemini III has the edge for me. I only wish I could have got my hands on one years ago when they were imtroduced.