Autococker Paintball Gun Cheater bolt drilled though for more or less Air / velocity

Here is a quick video showing an Autococker bolt that has been drilled straight through to allow air to flow from the valve to the ball/breech from either direction. If you chrono with the smaller port facing your valve, the autococker will shoot at a lower velocity.
If the bolt is flipped, the velocity will jump.
Some players would chrono with the small port facing the valve and then after chrono, flip to the large port to boost their velocity.