Changing Sanding Discs

I have a Woodfast DS300 disc sander that I use very often. The biggest problem I find, is changing discs from one grade to another. I worked out an easy way to do this without having to dismantling the table assy. I use an opaque thin plastic cutting board, that had outlived its purpose in the kitchen, rounded one end to the 300 diameter and slip this between the hook backing and loop disc, rotating the disc as I go. After a full rotation, slide the disc out and replace it with the new one, lining it up on the edge, hence the opaque board, slide the board out and job is done.

Kryn