GA Russell: Yes they can be "easily" revised (at a cost), but that doesn't do anything for any bad rap you get for getting it wrong in the first place. And it doesn't stop the nerves from worrying - or not mine.
KennyC: Thanks heaps. Chocolate consumed, along with some very nice Irish Whiskey ... in fact I may just go back for more.
Mr Ploppy: I have indeed noticed a good number of errors in tradpub books, and not just new ones. I don't expect it to be perfect but ... well, I'd still like there to be as few technical hitches as possible (don't we all).