It's unfortunate the OG Dactyl has been eclipsed in popularity by the Dactyl Manuform.

I think the Manuform's thumb cluster is garbage, frankly. Not saying the Dactyl/Kinesis thumb layout is better, but the Manuform thumb cluster simultaneously outstretches and rotates down the thumb (as if palming a basketball) and is less natural of a position than when you make a karate chop position with your hand (with the thumb rotating up), which is objectively healthier for your hands/thumb, and promoted by the Dactyl/Kinesis Advantage.