Scanning the top 1000, seems like a lot more Americans than Canadians to me lol. We have some nice Canadian reppin' in the top 10 though No worries, I'm pretty terrible at getting back into the ST stacking build too to be honest. Best I've done is stack to 80 lines, break, then for another 20 lines or so. I can't do recoveries very well at the speeds of the higher levels. I don't think I'll be playing anymore Marathon before the deadline with finals and stuff, so I think I'll be leaving my score at 593k, unless I crack, which I probably will =P I might do some experimenting with all clears later today though. As far as combos go, I don't think they're a reliable way to get points. From my understanding of their scoring chart, each combo just adds a point bonus to your line clear that depends on the level you're on, and how long the combo is. The multiplier effect that they're talking about is multiplying the bonus points only. It doesn't touch the points you get from the t-spin/tetris itself. Otherwise, a b2b tsd at lvl 10 with a 5x combo would give like 90k points. If you were to do a b2b tsd and then 5 more consecutive single line clears, it would give (1800 + 50 + 100 + 150 + 200 + 250) x Level = 2550 x Level for 7 lines, whereas 3 b2b tsd in ST stacking would give (3 x 1800) x Level = 5400 x Level for 6 lines. So unless I'm misinterpreting, or just being really stupid, looks like ST stacking is the way to go.