Can I ask a stupid question?

 

You can use a small, flat blade screwdriver to push the little rubber tips up and out of the metal floorboard.
Using a small amount of lubricant (or dishwashing liquid) will help in removing them and use a pair of pliers when pulling the rubber tips through the floorboards when installing your new pads. Use a little, careful side-to-side motion when pulling the rubber tips through the floorboards.

If you're using the OEM mounts for the new metal floorboards, you'll have to remove the metal retaining pins but it's a simple set-up as you will see as soon as you get the rubber pads off.

 

Getting the rubber hot helps a lot too, it makes it softer. You can use a hair dryer or hot water, but dry it if you use water before using the soap. You could probably use a heat gun, but you'd have to be really careful not to melt anything.

Or just sit it in the sun.

 

Well thanks to you all and especially to Dave at Harleysville Motorcycles who sold the Banana Boards to me.
Here is a few pictures of the install which went very smoothly:
Dante

tap out the pins to remove the board

Careful not to lose this ball bearing!


Template in place ready for metal punch

chase the board threads with the screws supplied. much easier while it it on the workbench.

Done!