Quoted from Whysnow:only game that flows better would be Full Throttle!
The geometry on Heighway games is 2 for 2 so far as the best flowing games ever built. They get the added benefit of no micoswitches or through holes in ball paths so the flow maintains speed. You dont realize the impact of microswitches till you play a Heighway pin with inductive switches and then you realize! WOW!!
Well then, you'd have to add Vacation America to that list....no microswitches there....all optical.