On Friday, May 14, 2021 at 3:33:51 PM UTC-4, wrote:
Two of us flew a declared 750K mission out of Post Mills VT yesterday and I am now wondering if this was a first in the Eastern US. Previous 750s I know of in Eastern US were all flown using extended ridge runs.

T8
I believe Roy McMaster flew a more than 750 triangle out of Harris Hill a number of years ago.
Excellent flight. What an airmass.
UH