I use the complexity demo player to review and organise my demos more easily. You'll need 1.6 installed though to actually watch them eLemennT. Remember to use "viewdemo" not "playdemo" so you can jump to the ticker timer you want exactly.
Silverquick can you edit your post to remove the name of the cheat being used, we aren't here to advertise for them. His is well setup with a narrow lock-on window for the aim assist, looking like about 10-12° of his crosshair, and it's kicking in after his 3rd bullet in a spray with a rifle. With awp and deagle it's got a wider window set more like 15-20° but kicks in on the first bullet. It's also set to a hard cap of no more that 20% headshots, always found it slightly funny when he's got 90+ kills yet less headshots than me at two thirds his overall kills. God like aim but doesnt seem to want to aim for headshots... was one of the alarm bells.
I was lucky to catch this lock-on, with the secondary target appearing just inside his assist window whilst he was shooting at the first target but its an obvious silent aim kill. You can even see him shake the mouse afterwards to recenter himself after he lost control of the spray to the autoaim, similar to how you will sometimes see good players do after a missed burst or awp shot. But this wasn't a missed burst, it was a surgically precise spray that looked well undercontrol, so why shake the mouse?