By Skimp are you referring to my email tune question? I only ask for email tune do to the fact that there are not a lot of boosted NSX floating around the east coast of Canada. And when I boosted my RSX i decided to go email tune and I was very happy with it.
Yes, I guess if you have experience with tuners emailing you maps and things but I wouldn't chance it. Just my .02 cents. There's a lot of things a tuner could potentially pick up while on the dyno including unforeseen issues that you may not be aware of.