You might try comparing both maps to see that there is very little difference between the stock map and the TORS map - especially at part throttle.
I did. The upper end of the F tables seem to be richer in the stock tune. The L tables seem richer at the upper end in the TOR tune.
How does Triumph create these maps? I assume they have a dyno and can tune the ECU in real time.
I think your advice to load your tune is the way to go for RTorque. I thought you had done one for the Touring for slip ons.