I have a habit of sticking my crosshair too close to the angle. Not dead on but definitely too close. But deathmatch doesn't feel that great for figuring out how far from the angle I should hold. Is there a better exercise?

I play a lot with viper and sova, and both of them have lots of lineups. However I would like to know what do you think are the best lineups for any character that you'd like? I see a bunch online but tbh it's more interesting to ask direct...