Thanks Tony, i mailed Brian(madman) about this, here is his response:
"The kink could be a problem, however, the cables are well insulated so it is unlikely that they are touching inside.
The probe works by simply joining the two wires in the tip of the probe, so, if they are touching at the kink, the measuring point is now at the kink rather than in the tip.
To test this, fit the probe to the unit and power it up. Heat the tip with a lighter, it should go from ambient temp to a few hundred deg quickly.."
I will test it first