Shooting Curve Flatteners

Actually you can increase the chance of hitting by firing when the robot is near a wall.

Randomly choosing an angle in the reachable area is a good fallback strategy. DrussGT does this, although this gun rarely gets used. It is more as a safety in case someone copy-pastes his gun and then surfs it.

People have experimented a lot with Anti-Surfer guns over the years, but nothing seems to work better than a GF gun that only works on very recent data. And once the enemy starts flattening there is very little you can do. At this point fighting at a distance or bulletpower where you are more competitive might be a better idea, and turn on your own curve flattening as well.

You are right. I just tried a weighted random gun with reverse weights and it didn't do better than the anti-surfer gun.