I haven't gotten the chance to compare both, but it seems you can't go wrong with either one. I have the e-rect and the tone on that mod is just awesome. To me, that's what a recto "should" sound like. I have to agree with rickgk, the top end is smooth and the low end isn't as tight as other mods, much rounder and bigger which i prefer, since my mark and ultra xl do the tight bass thing very well. Harmonics just jump out of the darn thing too. I could just play with that module for hours and it would still bring a smile to my face.