Hi, I recently acquired my first GTB System 1 pinball machine, a GTB Dragon. I have several system 80 machines, but this is the first system 1. When hitting the spinner hard and fast, the machine doesn't start registering the spins until the rotation slows considerably, and the player feels cheated out of some points. I have checked the gap on the spinner contacts. Question, is this normal for a GTB system 1 machine, to be slow to register/recognize a fast rotating spinner? Is this caused by an early design slow MPU, or coded this way on purpose, or some other issue? Thanks for any replies!

So, what I'm hearing is that the OEM mpu is too slow to handle rapid scoring contacts. There are several brands of after market replacements, are some faster than others? This seems like it could be a deal breaker when choosing a replacement. Thanks!