|Just had another look at your skates.
The method of setting up the sliders on my variflex plates would be too high to be effective on your skates. They are essentially a double height row of skateboard slide rails on either side of the kingpin, near the base. Very similar to a tracker set up, but probably ineffective for a short baseplate like yours. What you have seems to be the ideal position for a slider - too close to the plate might lead to hang ups - been there too often already