Two things
With spit 16s, it usually comes down to pilot skill. If you run into someone who can fly them well, you may be in trouble. But the majority of people who are up flying those 16s are newer to the game.
The 16 holds E better than most people who fly it realize. Therefore, in an 8, you can use that to force an overshoot, or, more subtly, use the initial E retention of the 16 to gain angles in a turn.