Thanks Joe, I'll most likely get one for mine when they come up for sale. The short front guard on the Scrambler does look good but also throws a fair bit of crap onto the engine and I'm slack when it comes to cleaning bikes. I've got a fender extrenda on one of my other bikes and they do work well, plus being black they pretty much blend into the tyre so you don't really notice them.
I'm even thinking of making some sort of rubber mudflap on the rear, in front of the back wheel, to stop it throwing crap forward, done that on a couple of other bikes (mainly to protect the shock) and it should keep the engine cleaner, especially if riding in mud.