I think that is a very good comparison, which is probably one of the reasons so many have loved the G400 LST. That little bit of extra spin makes the driver so playable out on the course. It is one thing to sit and groove bombs on a launch monitor, but the ultra low spin can cause problems for some out on the course.
I think this is definitely one you should test as part of any fit. It's good.
But for being actually playable, I think that is something that fitters do a bad job with. I think if you're getting fit on a sim, playing a few simulator tee shots would help bring some perspective to the fit.