Yeah, some people on the discord have gotten rid of the gear and opted for a wire that’s wrapped around the twist receiver and attached to a wheel on the servo, or something like that. Saw it a few months ago can’t remember specifics.
Also, you can limit the twist and other axis at certain depths using the Smart Limit function in MFP. There’s a post somewhere here on ero that walks through it.
Edit: Found it! Posted by @g90ak. Helped me tremendously. The expanded bits about Smart Limit are in the comments.