Route 8 Lass strats (Yellow Classic)

Average Gambler fight (BB, Thrash)	44.2
Average	Clefairy fight (DK x2)		45.83

Saves 18 frames later
Different stat exp. might matter, especially in Speed

...so Growlithe range needs to waste 1.33 seconds (1.83 with Thrash) for Lass to be worth it