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Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 100,417
One easy way to get some idea of how many people are using GUCs on TPAC flights is to watch the gate upgrade list on the app. This should consist only of displaced D1 passengers (rare unless there have been IROPs or an aircraft change) and those trying to use GUCs who haven't already cleared.
I saw four on the list for my last TPAC flight, although I wasn't watching carefully so there could have been more.