I'm ON Phily/Pit UN 7 Plus 110, 2 weight

I'm ON Phily/Pit UN 7 Plus 110, 2 weight NOW is the time to hit UNDER!
How do you decide when it's the right time to buck a trend? I can see laying off a unusually high total but, how to you decide it's time to take the under and a 2w at that? thanks.
I don't think he bets much hockey or watches it. But when he does he prefers under 7.
3-0 series trend towards 'overs' in baskets, I didn't think NHL would necessarily be differnt. Competitive series late in series go under more often in baskets and hockey. So games 5 and 6 under were logical.