Thanks for the input first of all!
The rear seat has little to no room, and really woudnt be worth rebuilding to fit ballast. At most it would be around 150lbs. I have the flip up rear seat that sits all the way against the transom of the boat, so there is no storage in the back.
I do have the wedge, and I run 880lbs of ballast, plus another 200lbs of lead in the front. (wedge down, ballast on the side of the dog house and lead in the locker).
So as far as wake, I am very happy, I love the wake. I just hate the manual filling of the bags, plus having to step over them w/lack of room. To make it worse I went out w/my roommate last night for a quick session, he having an 01 X-Star. Pretty much sealed the deal for a new malibu for me.