03 RSX-S that I love to death. I've had her for almost 5 years and it's long since been paid for, the best kind of car.

http://i.imgur.com/89HYE2v.jpg?1

To add some basic numbers to this:
At 16:02 in the VOD located here: http://www.twitch.tv/nonis3/b/549248109

at tick 6271 mouse2 (+attack2) was depressed to zoom in
at tick 6282 mouse2 (-attack2) was released

at tick 6383 mouse1 (+attack) was depressed to shoot
at tick 6383 mouse1 (+attack) was released

As a reference point a tick is 1/66th of a second (TF2 servers are locked to 66 tick). This means that mouse1 would have to be depressed AND released all in less than 1/66 of a second aka 15 ms.

Now this last part I know is a bit of a stretch but I thought it was interesting/amusing so here it goes anyway:
If you were to click 66 times every second you would end up with 660 clicks in 10 seconds in this neat little game http://www.brainbashers.com/10seconds.asp

I got 79.

I could see instant replay working if you had something like shadowplay constantly recording the last 2 minutes (60 fps) while streaming. Then, when you want to replay something stop the recording and open it with a video player in fullscreen and playback at half speed (30 fps).

If you had separate scenes already made for TF2 and the video player, and only switched scenes after the video player was already fullscreen, it would be a pretty seamless stransition. The only glaring issue I see with this is the fact that it's a lot of work to be a cameraman and this only adds to the workload.

Daft Punk - Instant Crush

PLEASE put up a 60 fps download. It's very important that I add this to my collection.

https://www.youtube.com/watch?v=EiiQcoP8w5Y

I guess the only real plugin that's useful would be sizzlingstats. Other than that, a config that turns on tournament mode and sets up some win conditions is all you need to play a pug.

http://sizzlingstats.com/download

I'm confused about what exactly you're asking. Is there a reason why you can't just upload the UGC 4v4 configs to your server and exec them?

http://www.ugcleague.com/files_tf24.cfm

Frag Vid Dectective reporting in: https://www.youtube.com/watch?v=z6ZLbTmQmyI

After the steampipe update all HUDs get installed in /tf/custom so I would look there for what to delete. Also, when you say you tried backing up your tf2 files, did you try verifying your game chache?

So you're saying that sometimes it boots and sometimes it doesn't? Try re-seating both(?) sticks of RAM as well as your GPU then try to boot up again. If it's still inconsistent try running only one of the sticks of RAM, with the other one(s) taken out, as one of them may be going bad and causing your computer to fail the POST (power on self test, like all that text you see when you first boot up) sometimes.

Have you already tried reinstalling/installing an updated version of your hud? Better yet, just move your hud out of your custom folder temporarily to see if that's the issue. Then you can go look for an updated version if that's the case.

If the issue ends up being you clicking outside of the TF2 window the solution is to halve (or whatever factor you want) your mouse DPI and double your ingame sens.

Here is another solution if you can't or don't want to mess with your mouse DPI:
http://www.snakebytestudios.com/projects/apps/cursor-lock/

Well, if the mouse is still under warranty just get it replaced. If not, looks like you'll need to buy a new mouse.

P.S. Protip to keep your mouse cable in better shape where the cable meets the mouse: Use some scotch tape to secure the cable and whatever slack you need to your monitor's stand. That will prevent a lot of extra stress on the cable and greatly reduce the chance of failure in that particular area.

have you tried using another hud/reinstalling your current hud?