This fix/mod cost me little more than 30min of my time, if you dont have the tools then it'll cost you some actual money too.
Firstly I have only one pic as my camera's battery ran out after taking the first photo, but if you just follow the instructions its really easy to follow.
Exibit A:

Here we see the rear brake calipers, the part to be modified is the handbrake braket that is bolted onto the caliper assembly via a size 14 bolt. Now if your a pro and have a drill press you can make this much neater but all i had was an angle grinder and a hand drill (this was useless).
Exibit B:

Here we have the cut made and the new recess marked out
Exibit C:

Here we have the new recess cutout and the weld blob's on the ends of the prongs.
Step one: Cut along the dotted line
Step two: cut a recess, down to the white dot, similar to the original so that the handbrake cable can fit in. This is located 18mm below the bottom of the original recess.
Step three: Put a blob of weld onto the each of the newly shaped prongs to stop the handbrake cable from slipping off once reassembled.
Step four: Reassemble braking system and adjust handbrake as per the manual (yes that little hex nut under the size 14 bolt)
Step five: go for a spin and enjoy those handbrake entrys/180's/not rolling back down a hill etc.
This mod allows the lever to move almost to the ends of it possible movement range. This is twice the range of standard, and in turn twice the movement of the brake piston - which means double the pressure on the pads!
If this needs any more explaining then just post up and i'll try to fix it.
Thanks guys!!
Dave