Thanks Craig for the speedy response. I must of missed it in the FAQ for some reason. Actually I have just looked at the main site and I cannot find a FAQ on it! I found it somehow earlier but I cannot find it now. It does not seem to be in the logical place on the Help menu. However I have now found it again on the Sniping tips menu item. It might be worth renaming that because it does seem to include many other items of help rather than just Sniping tips. Having an entry like Sniping Help for all help items and also having a FAQ entry in that menu to take people directly to the FAQ so it is easier to find might be worth having. It is a bit difficult the way that it is ATM IMO.
Also "Is there a time when I can NOT add, modify, or cancel a snipe?" is not on the FAQ FYI. There is an entry in "Can I cancel a snipe?" which seems to be the closest thing to it. That is probably why I missed it TBH.