I have a Minimax SC4E slider. A couple of years ago I put Proscale DROs on the crosscut fence stops. I also added a parallel positioner using an Incra positioner. The Incra worked fine but it's heavy, bulky and kind of fussy to read and set. I started a conversation with one of the engineers at Accurate Technology and we determined the Proscale 590 positioner would probably work for what I wanted. They made some minor changes and sent it to me for testing (I paid for the hardware). The result is pretty good. It's more compact and a lot lighter than the Incra, and has the same accuracy as the Proscales on the crosscut fence. Quick and easy to calibrate if needed. Later I added a stick on tape measure and acrylic cursor for rapid positioning. Pictures:

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