Precision engineered, precision machined - this cap perfectly ecompasses a snapshot of where we are with cap physics.
The first two variants are for 24-25mm bangers and mobile rigs respectively. The mobile rig variant has a slightly wider rim and slightly less airflow, but still works as a high restriction cap on any flat top nail 16-25
A cap needs the right amount and type of airlfow, and these are as well refined as we can think to make them - balancing ease of use, rotational energy, splash mitigation, and penetration into the liquid layer.
Standard Channel Caps are the most direct comparision, and we see this cap has:
Much better fit and stability (rim)
Much better penetration into the oil (testing with water in a nail and a pump demonstratably aerates the water unlike anything we've seen)
Slightly less splash mitigation (still excellent, but there is a trade off for power)
Less universality (rim)