I'm with Rich. I'm somewhere in between but a little closer to 90. But whichever one you use I would never go to foul ground. It's too far to make up on an overthrow. If you're in "A" you HAVE to make that call yourself or lose your credibility. Read the bad throw and take a lunge step toward the foul line. If a coach ask you to check with the PU I wouldn't. Just tell him you got a good look at it and you're keeping the call.