We talked about it before and you dismissed saying that it already works this way but I didn't have time to write up about it at the time.
When you fire with direct control projectile weapons and constantly moving in a certain direction, without moving cursor or rotating ship, projectiles will eventually pass through the cursor. Now you might think that it's what I meant - but it's not, because cursor is moving constantly with the ship as well.
What I meant and suggested is to have a mode so weapons aim at the point under the cursor - imagine a stationary target under the cursor - it's the target I want weapons to track in this mode, that way if you are constantly moving and aim at a spot, projectiles (if they are able to) will pass through that constant spot fixed at the time of firing and not pass under the cursor.