Hi Peter,

You're right, but by putting three sets up on the web site (slow, medium and fast) means you'll be able to work out the speed of any surface you use the Boomerang on, not just the surfaces we sell.

What's that saying - give a man a fish and you feed him for a day, but teach him to fish...

I've only done the fast one so far which translates to our Carnoustie mat but Geoff Magnum said he would help with the other two - watch this space.

Cheers

Alex