I've been using a bugaboo buggy board on my chameleon but it's just broken so I'm going to have to get a new one smartish[grr]
The bugaboo one is a bit long, I have to extend the handle fully and walk slightly to the side when pushing, which is fine but not ideal. Also, the wheel often gets stuck at rightangels to the buggy wheels which is a real PITA. But, maybe that's because it was pretty old when I bought it 
So, I was wondering about a lascal, they seem to be widely available second hand and look much shorter. The thing is, DS insists on being RF, I was wondering if the lascal was so short that the pushchair would have to FF. Also there seem to be 1001 different models, or is that just different patterns on the thing?