No need for a switch now...I found a compay that were a Revo dealer that changed it for me for free!
Well, here comes the complicated part.
JKM set my revo at Boost 6, Timing 5, Fuel 8. I bought a Select switch about a month after I bought the remap, which was programmed and came direct from Revo UK with what should have been the same settings as JKM programmed.
I used the Select switch back in January when the car went in for a service.
Plugged the laptop into the car today, and the setting were Boost 7, Timing 5, Fuel 9!!!! So Revo UK must have fudged things up on the switch settings.
So, I kept the settings that were now on it and changed the Timing to 6 just to experiment really! Doesn't really feel too different to be honest!