Thanks Ash.
What I love about Marks book is the depth of knowledge and real experience he has of the 750. He takes the time to explain things in a clear, methodical way. The layout / writing style isn't always that intuitive- i find I have to re-read a few passages here and there two or three times to get his point / explanation. I imagine there is a hell of a lot more knowledge he has - probably enough for a second book.