Mitch had designed the attached optional PTT throttle knob a while back. I'm going to use the concept for my smoke system and will have about 6 of these knobs CNC'd out of black Delron. If there is significant interest I could have more built.
The knobs will be about 1.4" Dia vs. 1.25" on the drawing. The PTT button will be recessed in the center of the knob so your thumb won't be constantly hitting it. The knobs are designed for the same PTT button as in the control stick which can be purchased through CubCrafters. At this time I'm just offering the knob without the PTT button for $50. This first run may be completed next week sometime and will put some pics of them on the forum.
For those who might be interested in one of these, send me a PM or email me at stede52@comcast.net.