Lee & all,
Yes, it takes a bit of practice to get good at the rubber-band feature. A fingernail works great - and will not hurt the screen. But if it's a bumpy flight even an expert will have a tough time doing this. In flight, this is how I do it: Touch the point you want to fly to, touch the "Options" button, touch "Add Waypoint Here", if you are redirecting to an airpor or navaid select that from the list, if this is just an random waypoint select the lat/lon option. (BTW, you can use the remote to do this as well!
Thanks!
Walter