I don't have one yet. I was thinking about buying the one people are putting in the Arcade 1ups.

https://www.amazon.com/ThunderStick-Arcade-Spinner-for-Arcade1Up/dp/B07P5WJ7BC/ref=pd_ybh_a_10?_encoding=UTF8&psc=1&refRID=51EVE44W5FE8YMV50WKF

https://www.amazon.com/ThunderStick-LED-Arcade-trackball-TS-UTB01/dp/B07T1FQFRM/ref=pd_ybh_a_11?_encoding=UTF8&psc=1&refRID=5YSE4HVJWV9T1M8AZRXQ

thunderstick trackballs work fine. there's one in my tempest legacy right now

https://www.amazon.com/gp/product/B07T1FQFRM/

Are you referring to v2? I don't see v3 in his Amazon store. If you meant v3, link?