I'm not out to knock the other products either but when you state that one brand is "hands down" the best one out there.....you are knocking the rest. I am just stating a couple facts that you require lots of hydraulic capacity to run the paralink. With the twin fans and constant flow for the paralink opener.....you need a minimum of 50 gpm hydraulics on the tractor. Especially if you are running a larger drill (50' plus) and putting large amounts of fertilizer.
I have a friend running a 57' conservapak & 430 bu cart with a JD 9400 4WD and he is able to apply 460 lb's of product with a single fan on his JD cart and travelling at 4.5 to 4.8mph. He would NEVER be able to to that if he owned the Bourg.
I have been there, with my Bourgualt (5710/4350), but did not like it. With that much product you are stopping to much to fill and more importantly with that much product flowing through a single line you get canola seed damage; I don't care what drill it is. You can compensate by increasing seeding rate but at $500/bag that is getting expensive. One of the reasons I switched to liquid. I seed at 4.8lbs with 55lbs phos and my air speeds down at 1500-1800 instead of 4500 plus.