Bring a memory stick, request copies of the run files. Not just printouts, but if you get the actual file you can view it and get all sorts of other info later.
And if they are amenable, AFTER you do all the mapping, put the original map in, and do 1 last pull. Compare that to the best pull you did with their new map.
Most shops start off running the bike while things are still cold, your stock pull looks weaker than it really is as a result. While they are mapping the bike warms up, and so it looks like they are adding more power than they really are. That final run with the original map in it will show you how much difference it really made.
And if they are amenable, AFTER you do all the mapping, put the original map in, and do 1 last pull. Compare that to the best pull you did with their new map.
Most shops start off running the bike while things are still cold, your stock pull looks weaker than it really is as a result. While they are mapping the bike warms up, and so it looks like they are adding more power than they really are. That final run with the original map in it will show you how much difference it really made.