Wildcat314159

Um... I don't really know. Notes get layered ON TOP of Founds/Attendeds. However, I don't know about logs that are the same kind.

You can use plenty of macros and bookmark lists. I'd recommend GSAK or Project-GC. However, like online logs, you can fake your FTFs (but Groundspeak will ban you). The thing that matters is the real log (but nobody will go out of the way to prove you guilty). People don't generally care about STFs and TTFs (or GSAK/Project-GC for that matter). If you don't get banned, please cue "Yakety-Sax". So anyways, that is my 2¢ on the matter.

I think it is possible, but tough. So, basically, no.

You can log it before them, as long as you log it as a STF. They may log the cache later as the FTF. All that matters is who signed the material log first.

Yes, the WPs need to be 161 m away (or 528 ft). Contact the CO to get the coords for all the stages of the other puzzle, then place all stages at least 161 m from the other puzzle.

No. The cache must have at least 2 stages with a physical container at the end.

I'd say just CITO it out. I recently saw a local cache that had a water bottle that had leaked... and got water logged.