Having an issue from time to time with the boot board on the Lange RX boot sliding forward when I am putting my foot in the boot. It seems that the sole of the ZipFit liner and the soft nature of the RX boot board seem to want to stay together and then it all ends up sliding forward in the toe box. Make sense? Have tried to use duct tape, double sided tape w/o success. Any suggestions on what type of glue that might stand up in this application?