Installing ProComp 6" - Truck has TSB, need AAL as well to sit level?

I asked this question in the 2nd Gen earlier this week and didn't as much input as I was hoping for.

I have a 4x4 2010 DC with rear TSB springs.

I'm getting my Stage 1 ProComp kit installed this week by the shop, and I'm not sure what to direct them to do with the pro-comp add-a-leafs.

Basically, the question is: since I have the rear TSB springs done on my truck already, do I still need the ProComp add-a-leaf (in addition to the block with the kit) to make my truck level? Or do I have them not install the procomp add-a-leaf?

I don't want any rake, I want the truck to sit level. I appreciate any help. Hoping to hear from somebody who was in the same boat.

Hope everybody had a great Christmas.

 

Bump...

 

Well....what road did you take with this?