Fly High X-2 Ballast Bags

I'm putting the fly high system in my 2008 X-2. I've got the MCX engine in there, and the boat has always pulled and gotten up on plane quickly with the factory 550 + a #600 that put in the bow walk through.

We're gonna plumb the bags into the existing overflow of the hard tanks, however I was recommended by wakemakers to put the 750lb bags in the back lockers instead of the custom X-2 bags which are 455lb because of cost savings as well as additional weight.

Is anyone running this setup, how do the bags fit back there and hows the boat getting on plane?