I doubt if Fastline has even seen a Triumph?
Have no basis for that - just a feeling
Are they using DynoJet?
If so, not ideal for tuning with TuneECU or TuneBoy - most DynoJet operators are not real tuners, they just run the automated programs.
Ask them if they have experience of a Keihin Triumph and understand particularly how to manipulate the L vs F tables.
Either of the places I mentioned are good - I have personally worked with Jim at JT & S on the dyno and he is good guy;
I think FactoryPro might have the most experience.
Check out their velocity stacks! - http://www.factorypro.com/Prod_Pages/prodtd_955.html