Okay...

Things I Still Don't Know

1. Can you one-shot reveal folklore items at 647 gathering? I'm told you can with 648.
2. What is the minimum perception requirement for 94 rarity increase when using Methodical Appraisal on a folklore item?

Assumption: 690 is the required perception to guarantee red scrip items using rotation #5 (SM-UC-IA-IA-IA-DE-UC-MA with SM in place of DE if any of the IA proc a DE)