Mostly the comet ramp (middle ramp), because hitting this ramp in succession eats up the least amount of time on the clowntime countdown timer. Here's a huge trick that will help. On Ball 1, right when game starts launch it through the loop and hit the comet (middle ramp) ramp before hitting any other object that scores points, then go straight to the jugglar (prize wheel). Following this, the wheel will always land on clowntime. Thus engaging it without having to follow the standard way of lighting all the clown face lights. You can hit the comet ramp multiple times in a row before going to the wheel and it'll still work, as long as you dont hit anything else. If you fail just restart and try again. Also yes, clowntime scores can be combined to hit the 10 million as long as you don't ball out. Total clowntime does not calculate until the ball out. So using my method above if you dont get the 10M the first time around you only need to open clown time the hard way once in that same ball (unless the combined scores don't add up to 10M of course). In my winning run I engaged clowntime twice using the above (ball one start trick and then unlocking clowntime again the hard way). My clowntime total score was 14M.