Top down, not picking against widely available lines. Or in other words, lines may not hold up that long. It isn't GB-3 as the play type things. Prop bets, team totals, soft markets they had/have. For me it was European hockey team totals, NBA alt lines on halves and bases team totals. Those were the softest. Lines don't stick around that long. That is the problem with posting and would be for most things to try and share.
I will say this about them...they build a ton of juice in. Don't be afraid of that, just don't bet it on widely available markets. You can find plenty of props, team totals, quarters/halves that are priced different than market if you look. Takes some time but once you find it, fire away. That add that juice in often on one side making the other +EV. Obviously haven't looked at their lines for a few years but I doubt they changed. Lazy...just boot and keep doing the same.
I made it about a full hockey season and a few months into baseball before I got limited. I didn't give them enough "typical" action so probably got booted quicker than I should have.