It's real easy to drive yourself nuts on these tweaks. The crystals are fascinating but at some point, it seems like Alan has shifted from innovative electronic conditioning circuits to selling a myriad of different crystals. Hey, I'm not knocking it - they seem to work to some extent and I certainly have my share of Alan Maher CBFs, but at some point you just have to wonder if these tweaks warrant all the time and attention (even if not money). And believe me, I've tried my share of most of them.
The way I figure it, if we are to be dependent on subjective listening, there will always be GEs, CBFs and myriad of other tweaks to buy and try. Just gotta remember that it's the nervosa talking...