@dlmiles I don't have an answer for you regarding SOA info or guidelines. Regarding the magic guardrings. The guardrings should be objects containing all the normal material in the guarding: tap, select, li, and licon1 I would think at least. Magic has a command "cif see" that will show you some of what is in the guardring object. You can also stream it out and view the gds in klayout to see for sure.