When I moved from the Hawk to the Thunder I wasn't convinced it was any better. The startup cable didn't work all the time and I ended up having to get the Cheyenne psu.
It does make lining a little easier and quicker but that's all really.
As I mainly do black n grey I've been thinking of buying a spirit to see if that suits me a bit more like the original.

Btw I didn't think the hawk and spirit had different strokes,