Well Stu, when I buy a Stg 1 chip from PJ Moto, Amber, GGR, etc it's safe to say it'll be safe to 14.3 lbs of boost.

An unknown chip you inherit classed as a stage 1 is like a box of chocolates - u never know what ur gonna get. It may NOT even be a Stage 1 at all. You're right -in the end, it's buyer beware.