gaui, not quite sure by that what it is doing. Looks like it pulls the wire against the tail wheel? If that is the case, in order for it to work, you would have to have the plane slowed down a bit and a lot of elevator to keep the weight on the tail wheel. I would think it would just drag the wheel and make it act as a skid.

Mayb work with enough room, but something like that on the mains would probably slow it down more. It would wear out the side of the tires though.

Dubro had a break system that went on the mains that cost about $4 to $5. I would think if you wanted cheap breaks, you would use that.