You don't need the jumper on the relay, thats a bit on the dangerous side if you ever short the harness. Lets the smoke out of the computers.
Leave the relay in, wire the switch the same way as detailed, then add a 30 ohm 1 watt resistor BETWEEN the switch and ground. This will isolate the circuit so the relay will stay engaged, the ECU stays happy if its monitoring the curcuit, and you have a fail safe if you ever pinch the harness or short a solenoid.
Careful with the lockup switch under high TQ, input shaft will NOT like too many locked-to-locked shifts. Once you engage the TCC solenoid the trans wants to stack shift all the way to the highest gear. If you have your foot in it and it pops into drive quickly you can snap the input at 30 mph. Opie is the answer.