Ok, so i'm late to the party for posting this up, but I was busy during the holidays with the family. Anyways, in case you missed it, here's a demo from Edelkrone's unique SliderPlus+. It's a 1ft slider (to fit your travel bags), that travels 2ft. Doesn't sound like very much sliding movement, but as with any tool, you just have to be creative about what you're using it for. There are still questions about how smooth the slider really is when operated by hand, but with a motorized adapter on the way, this slider can be very consistent with movements.
Edelkrone has claimed to have 'Reinvented the Slider'. From what i'm seeing, I would agree. This time around it looks like they've conjured up a 2 ft slider that slides longer than 2 ft. Or is it a 1ft slider that slides 2 ft? As most dual rail sliders require two stands, the Slider Plus only requires one tripod.
Starting your video from one end of common sliders will often show your rails in view, but with Edelkrone's unique retracting design, the rails move with the camera. Starting at $499, you can find more information about Edelkrone's latest release at the Slider Plus product page (Click Here)
Edelkrone Slider Plus Retractable 2ft Slider.