In 1983 Eric Schuijt built The E.S. Drum Synthesizer. Using a microphone, he was able to place all kinds of waves on the microphone sound.
Much later he bought a Roland V-drum set with the Roland TD10 module, which came in very handy as a practice kit. The module was very cleverly designed, but the cold Roland sounds didn’t compare to a real kit.
Two years ago Eric purchased the Pearl Mimic Pro. A module with many subtle adjustment options and above all a very good sound.
He mounts the Yamaha DT50 triggers on his DW kit. A Sennheiser e614 (with pop-top!) is used for the hi hat and the Rode NT5’s as overhead. He uses this setup for recordings. Just listen to his Eric meets Buddy Rich recordings. All outputs of the Pearl Mimic Pro are connected to a Midas M32R Live mixer.*
Eric uses the Yamaha EAD10 for small gigs. A smart module with which you can easily enhance your kit without too much fuss.
Other electronics he uses are the Tama Rythm Watch and his Smartphone. He once bought the Tune Bot, but relies more on his ears to tune a drum set properly.
*Eric admits that triggering such a good drum kit is just as stupid as using a Steinway concert grand piano to control a synthesizer module.
*Many drum electronics are not available in the Netherlands because the importers give too little margin for physical shops..