I love the original Xotic (EWS) Tri-Logic preamp. For all of you who have tried the smaller Tri-Logic II and the new Tri-Logic III how do they all compare? The knob configuration on the new vIII seems a bit awkward but aside from that what are the tonal difference (if any)? More gain on hand? Are there any tonal/frequency differences between the II and III? Lastly, if you had a Tri-Logic and selected another preamp, please do tell why.