Thanks John. I haven't done the Ascent since they started using timing mats so I wouldn't have realized the a-frame timing mat is in a different place than the aid station.
In response to:
I occasionally get personal emails from other runners who have questions but do are reluctant to post on the message board. Your question is certainly understandable.
I should mention that until two years ago, the A-frame cutoff (4:15) was at the aid station. When additional timing mats were added the cutoff is no longer at the aid station, but at around the 3 to go sign which is about 0.1 miles past the aid station.