Front bag set up on a square body

Hey guy I'm about to start bagging my first dually. I've never bagged a dually before and have been wondering how to do the lower control arms on this square. I've seen guys having to cut their lower control arms and sink a cup into it about 2"-3", and other guys just run a cup eliminator. I'm running stock spindles right now. As soon as the snow hits here the truck is coming apart for a stock floor body drop to hopefully lay rocker, and I'd really like to only have to do this once and not have to redo it after the body drop.
Any help with this would be great.

I should probably add that the bags I'm using in the front for now have a
Collapsed height of 2.8"
Extended is 12"
with a 7.25" Diameter

ill post some pics later, but if i remember correctly i used an 9 inch tube i got from the metal store and sunk mine in 2.75 inches.

i z'd my frame 3 or 4 inches, cu the upper cup or frame and then welded in a flat plate for the bag to bolt to.

i pie cut my upper control arms, and have stock lower arms.

i have stock spindles and lays completely flat on stock big 'ole tires. i tuck lug nuts in the front on 16 inch wheels.

at full lift im about 2.5 inches above the tire.

Some pictures would be awesome. Is the Z going to be needed to lay out frame before I get around to do the Body drop??
What all is involved in "Pie Cutting" the upper arms??

yes you need to perform the 'z' so you are in fact completley laid out, then do your bodydrop. well, i consider it cheating, but technically you could just bag it the basic way, then over body drop it. but thats weak lol and not suggested. but ive seen it many times.

So if I do a 4" stock floor drop by cutting the bottom side of the frame rails and doing a 4.75" Z is it going to lay out with a 2.50" cup in the lower arm??

i did a 3 in cup in the l.c.a's and im laying frame( with 3inch drop spindels) If im not mistaken bk2life cut his frame rail. Check out his thread. Hes got alot of good info and pics. i also didnt have to "z" my frame. Good luck bro