feedback from lowered truck guys

[scum1]

im just getting my truck on the road and ive got it lowered with 2" blocks in the back + jeep springs and c notch..the front has got just the coils cut..its low but not as low as id like or as low as some of the guys on here with similar setups..my concern is any lower in the back my pumpkin will hit my bed wood before anything else..i havent heard alot of people talk about that. second is my exhaust which i figured would happen eventually.. and lastly the pinion angle, do you guys with static drops shim out the rear end? im not too familiar with that stuff..ill throw some pics up too for ya guys