perhaps its the brand of industrial strength velcro i used? but the adhesive on it wasn't very good, so i kinda used this clear superglue to glue the velcro to the pedal itself. it is removable though as the metal doesn't fuse with the velcro....though you gotta chip/scrape off the hardened glue if you wanna readjust/reglue.
those thin adhesives that's on the velcro are kinda ironic as the velcro itself is way stronger than the adhesive, so everytime i rearrange the pedals, i wind up ripping up the pedals and the two velcros are stuck to the board....