It is quite a bit of math, but it is significantly simplified from the way it was originally written. I agree that it's a pretty cool concept. Leads to a very "Island of Dr. Moreau" kind of feel (which there is an example of in the book, if you haven't reached it already).
I like the chase mechanic myself. When I first saw it in the table of contents, my gut reaction was "big deal". However, after reading through it, I thought it was pretty interesting and, more importantly, involving for the characters.
I like the chase mechanic myself. When I first saw it in the table of contents, my gut reaction was "big deal". However, after reading through it, I thought it was pretty interesting and, more importantly, involving for the characters.