I can't believe this debate is still going on, despite being explained several times already in very basic terms. This isn't advanced calculus guys. This is 3rd grade math. You don't need experts or arbitration to settle this.
If the line is -105, and the commission or fees or whatever you want to call it is 1% win or lose, it is equivalent to slightly worse than -107 lines. $105 to win $100 becomes $106 to win $99. If it's 2% of only winning wagers, it becomes $105 to win $98.
If you can't come up with this result on your own, you have no business gambling on sports and expecting to win long term. Your math is simply not good enough.
If the line is -105, and the commission or fees or whatever you want to call it is 1% win or lose, it is equivalent to slightly worse than -107 lines. $105 to win $100 becomes $106 to win $99. If it's 2% of only winning wagers, it becomes $105 to win $98.
If you can't come up with this result on your own, you have no business gambling on sports and expecting to win long term. Your math is simply not good enough.