Well, I get about half of what you say due to my 9th grade education but there is one (glaring) factor you have omitted entirely and that is "Darkroom Demons." That's right, I got em. They rear their ugly little heads every so often and then go away for awhile. They came out during my semi stand development tests big time. Things happened that made no sense whatsoever. So, I surrendered and tried something else. I guess I'll try the semi stand thing w/Rodinal at a later date. Basically I got tired of sucking fumes and wanted to get out in the fresh autum air and make some photographs.