I'll start by stating that the reviews and direct communications sent to me by the other hundred or so users of these sticks is polar opposite to what has been written above. More than one user has actually conveyed that they thought the Dominux was the best stick ever made for games like Robotron, and other classics, including the originals in the conclusion. Comparing a rubber grommet centered stick to a spring-centered stick is less than ideal. If the user has only had experience with the latter, which BTW, weren't the type used on any of the arcade classics, they will not be familiar with how a high-end grommet stick feels, and it may take some time with it to appreciate the differences. The additional features of the Dominux, which allow for switch adjustment and shaft length alteration, also make it a completely different beast, and the manner in which it is configured and installed can make vast differences in how it feels and performs. See below....
The centering grommet is a little sluggish on return-to-center, which seems to contribute to this. The travel is two miles long; a mile long with the restrictor, about the same as a Competition; half a mile or less would be ideal. I also got the longer shaft, as suggested for 3/4'' panels, which is a comfortable height. Overall, built like a tank.
I'm not really sure how to better convey the shaft length adjustability features, and the effects the length of the shaft has on throw and return to center, than I already have in the product description and in multiple posts on the subject. There is no longer or shorter shaft for the Dominux sticks. The physical shaft part is the same length for both configurations, and the option on the site simply tells us how to assemble the unit for your intended use, so you won't need to change anything when you open the box.
The length is always adjustable by the user, if he/she decides that the other configuration is preferable.
First, some engineering background: The throw of any stick is dictated first and foremost by the distance between the part of the shaft being held, and the fulcrum point. It is then limited, or not, by optional restriction, with that restriction amount being limited to something which is still able to reliably actuate the switches, without the throw of the shaft feeling too "truncated" to the user.
To reduce the length, and subsequently the throw, of the Dominux shaft, you simply need to exchange the position of the white plastic parts at the top and bottom of the assembly (or order it that way to begin with.) For a 3/4" panel, this will likely require that a pocket be routed into the underside of the panel, to increase the exposed height of the shaft, just as would be necessary with the shorter shafted WICO joysticks, "asian" joysticks or the Leaf-Pro. An option to further reduce the throw for the Dominux in the shorter configuration, would be to have ordered the reduced throw circular restrictor when the Dominux stick was purchased, which accurately approximates the feel of the original short WICO joystick, but which also brings with it the somewhat truncated feel of that stick. This restrictor will also reduce the throw in the longer configuration, but a longer shaft will still equal a longer throw.
And finally, just because a joystick allows a user to push it beyond the point of switch closure, it is unnecessary, and often not beneficial to use it in this manner. The switches actuate at the point to which they are adjusted, regardless of the physical restriction. This is why avid Robotron players hold the Dominux in such high regard. They can adjust the switches to provide very precise control without moving the shaft very much at all, all while having the longer shafts to provide the feel of the original sticks used with that title.