Lowering blocks w/bags

[1moretoy]

Hey guys getting ready to put the rear end together and need some help with the air bag set up. Rear has a c-notch, accuair e-level, and slam ss7 bags. I have been told I should put in 2" drop blocks so I can obtain a lower ride height with the correct bag pressure. Does this seem right? I definitely dont want the rear to look like a 4x4 while cruising. Also do I need rear bag brackets or do the bags mount straight to the frame and trailing arm? Do any vendors here sell the blocks if recommended?

Thank you