[Rebel1]

Plums, check how much of the pads are actually clamping the rotor.

I noticed with mine that a very small area of the pad was marked after use.

Keep in mind how the thing works..... The pinchers pivot on the bolts thru the caliper lugs which are a fixed distance apart. The levers which cause the pinchers to close are at the other end of the pinchers. If the pad is new and a bit thick, only a small part of the pad ( that closest to the pivots) will contact the rotor, but will then prevent the rest of the pad to clamp the rotor.

Sometimes...depending on the make of pads, you may have to taper the pads a little on a grinder. You will need to grind that part of the pad closest to the pivots so that when the levers compress the pinchers ALL of the pad clamps on the rotor.

The hand brake pads are small enuff as it is so you need all of the pad area to contact the rotor to have an effective hand brake.

Mate, they worked on the jag (in a manner) so should easily work on the cobra.

It's all in the initial fitting and adjusting. Once right, the auto adjuster will look after them.