Hi d... sory this is quite delayed. But yep - quite confident. Engineer I am not, but I've learned quite a bit on this sort of thing from a couple well qualified individuals, and understand enough of the theory to make the adjustments that I did. Most of the list actually came from someone else's list - I didn't alter the values much from theirs, but any alterations I did make I am 100% confident in. One of these days I'll get around to finishing my own 717.