+0/-2MM FROM EDGES OF CHECK FIXTURE AS ALSO DEFINED FROM STOPPER POSTS ON GLASS CHECK JIGS THAT MEET TO THE EDGE OF THE CHECK FIXTURE. IF STOPPER POSTS ARE BEYOND THE CHECK FIXTURE EDGE +1/-2MM APPLIES TO GLASS EDGES OVER THE EDGE OF THE CHECK FIXTURE. GLASS MUST BE ALWAYS PUSHED UP TO THE TOP EDGE STOPPER POSTS WHEN BEING CHECKED. GLASS ALONG TOP EDGE SHOULD NOT VARY BY MORE THAN -1MM TO INCLUDE AT THE TOP TO THE END OF THE ARC DOWN THE SIDES