it wont hurt and it wont help as much as just playing tf2
having a diff sens in csgo was never a problem for me personally

Experiment with different crosshairs/or hud crosshairs (try using bright colors); always keep the same sens in any game if possible. Really the easiest way to improve aim is to play the game and just practice practice practice. If you play in DM servers at all never be scared to take a fight; think of where you have your crosshair, where the player is and predict his movements ( concentrate! ) The most important thing before you put all your time in aim if you're gonna play scout is work on movement (Movement as in strafing, jumping on objects without looking and understanding double jumps) Just gotta practice man :)

Playing multiple games gives you a good understanding of other techniques from different games. There are various aiming styles in pretty much every game that can be applied to tf2. People don't heavily weigh little things like good crosshair placement in tf2, but when you play cs, it becomes more natural and can obviously be applied in tf2. Also, the scouts wih the best aim in tf2, for example, just have good aim in general on everything they play.

After becoming more diverse (for most people) it's important to grind your specific class and play it as much as possible. If I ever have a match, I try to play scout mostly, but I've also seen people warm up in quake. Different things work for different people, but playing your class is just what works for most people.

Surf/Bhop in tf2, csgo , or css can maybe help, but you will have to invest a fuck ton of time before you see any results. If you become a decent enough either, you will see an improvement in airstrafing and surfs and hopefully your aim as well.

Playing quake against good players helped me a lot and gave me the ability to multiclass which is nice

Quake helped my TF2 aim, but CS:GO didn't.

If anyone says osu i will rip his throat out

my boy Twitchy used to play a ton of cs dm and his shotgun was retarded good (cs wasnt the only thing he played obviously he practiced a shit ton in tf2) also as someone with a relatively high sens (6.5 inches) who never put much time into hitscan, using an aim training map in csgo to warm up every day for a few months now has helped me a lot with mouse control, crosshair placement and muscle memory. but you should of course be putting much more time into tf2 than other games

CSGO made me start thinking about crosshair placement and how I round corners a lot more which actually is pretty helpful in TF2

Yeah, CSGO helped for crosshair placement and general aim stuff regardless of sens. don't play overwatch though it kills

I don't see how Overwatch aiming will harm TF2 aiming

it sure won't help though

i used to play cod a lot

coolmathgames.com molded me into a tracking machine

Quake is v similar to tf2 but a lot faster, translates even more if you use an fov of ~105ish which is similar to what tf2 uses on 16:9

CSGO is debatable. Almost certainly helps with sniper but imo the aimstyles are pretty different, the main difference being that you aren't going to want to aim for the center of the torso in CS when you are most of the time in TF2. Using a lower sens in CS than tf2 I think is generally better for everything except for maybe sniper because the aimstyles are so different and because you're going to have to track faster moving players and at closer range on scout.

csgo also teaches you to prefire angles at times so you get like 100 damage off free while you push out and check for hiders

"the aimstyles are pretty different"

if anything that'd be a + for playing CSGO since you'd learn a whole new way to think about aiming and FPS games rather than just grinding out what you already know in TF2

Can confirm osu! doesn't really help beyond perhaps making you comfortable with physically handling your mouse.

tbh devil daggers helped me track a little bit better under pressure

devil daggers is imo a great way to learn how to separate threats and make quick decisions in a chaotic environment, especially with how fast it is