Nice guide. I learned a bit from it, but I don't really care much since I don't plan on playing CS:S on a professional or competition level that often.
Don't double zoom ever, be quick, quick scope around corners, line the middle of your screen up to the enemy before scoping. If you happen to like hard scoping, do it aiming at a corner, just where the persons head would be, and be quick when you see them come out. It's satisfying and quite easy really.
Practice lining up the middle of your screen to an enemy to get fairly good at no scoping, again it's pretty easy.
No just read the guide "How to be like kilroy19" lol jk just aim at the feet when spraying (short range). When far 2 shot burst for the ak and 3 shot burst for the m4