Basically some may know this trick, and some reason its starting to pick up, I believe Xane posted a video long time ago with SMG's doing this.
How-To:
Under ragebot there is Position Adjustment, change this to On + History (On works to but not as effective, but at least you keep your fps! xD)
Use 0% hitchance obviously or it wont fire.
Videos:
http://plays.tv/video/57d0f50f9ba05bf006/nospread-fix-meme
http://plays.tv/video/57d1088badfda63415/nospread-fix-meme2
Enjoy bunny hoping and shooting, also this is sorta luck based as well, sometimes youl spray half there team before reload, sometimes only 3 before reload.
On+history is recommended.
Works Well with MP9, Ak47 in medium distance, and most SMG's, Five seven can profit, just try things. Enjoy!