After Enforcer’s original controller lag test result post turned Twitter upside down, I asked if he wouldn’t mind writing up a guide on how he performed those tests, so others might follow his method. That page is now complete and part of the Oscilloscope section of the website!: https://www.retrorgb.com/controllerlag.html
I used that method to test a few different controller adapters through a Neo Geo MVS. I only performed the test about ten times each and this was my first time trying, so maybe others with a scope can help confirm? Either way, I think people will be happy with the numbers!!! Test results below:
Neo Geo Controller (basic switches) directly into MVS:
Brook Fighting Board through Undammed’s USB Adapter:
Mc Chthulu Board through Undammed’s USB Adapter:
So, overall, this is an excellent day for custom stick users! Not only did Enforcer provide us with a reliable method to test controller lag, but I was able to verify some common setups as being extremely low latency!