I think the reason he suggested it was because they had set up another planter that way. I'm thinking the guy must have been doing variable rate starter.

Yes, KISS, but the wheel drive setup that they put on Bauer bars is pretty spendy. It coupled together with the cost of a John Blue pump will pretty much buy everything I need to go hydraulic and then when I strip-till I will have a pump to use for that as well. I think for now at least I want to mount it to the frame for the tank we mount on our tractor. That way when we take the frame off the 9230 and mount it on the 9400 the pump will go right with it.