I know you say look to the future but... now you have $803,250 per year via:
$3,500 X 255 (trading days) = $892,500 - $89,250 (10%) = $803,250
Whereas with them you will have $646,250 per year via:
$3,500 X 255 (trading days) = $892,500 - $446,250 (50%) + $200,000
You simply ask yourself...