What builds have you tried before, which one did you like the most? I myself had never heard of cs 1.9 before, but somehow I came across a forum about cs and saw that many guys were recommending the site https://all-cs.ru/cs16/sborki/counter-strike-1-9.html. I decided to try it too and to be honest I liked it, the sight from cs go looks much nicer than in the same old version of cs 1.6, you hit the enemy more accurately and your skills improve thanks to it.