I currently have 2 crary systems, the blower part works good, the reel system is a high wearing deal, In looking at the AWS website and talking to them -- you can have the blower either on the combine or down on the header andthe nice part is that you can use the org. JD etc reel, I do think the AWS sys give a better angle for the air flow also, they also state they have baffles that equalize the air flow thru-out the header