I am curious about the 1st gear gear ratio in the low-gear applications.
That article at the bottom of this thread says it's just 2.54:1, but with a 1.54:1 2nd gear. My T-flite expert friend, Len Schneider says that's a mis-print or typo and is actually 2.74:1.... that that is the only ratio possible with a 1.:54:1 2nd gear.