It is understandable with Aster and LGD to pick -1.5 maps because they are really strong in this tournament. If there is a team that have the possibility to beat LGD it would be team Aster.

But I do not understand why you would pick -1.5 on OG and Outsider. This match is more likely to go to Game 3 than these teams getting 2-0. Aren't you underestimating the strength of Entity and Team Spirit? Team Spirit normally drops games in the early stages but comes very strong late in the tournament. Entity is quite strong too as we've seen in the group stage. I think you are giving too much credit for OG and Outsider but we will see. Good luck with your parlay.