If you were willing to go scorched earth on your Mac to go back to SL, did you try a clean install of Lion first as well?
Oh, yes..... But don't get me wrong, I've got no problem with lion in principle. It's just that I've now got a checklist to go through before I go back to 10.7.3.(or .4 or .5 who knows?). Need to make sure lion works for me as SL did.