I'm not sure if my last post might have sounded a bit rude. I don't want you to get the impression that I'm not extremely grateful for the effort you are putting in to explain Gann to us all.
And I do agree with you that drawing the charts by hand is VERY useful. After you've done it for a bit you get a feel for where the swings are likely to come. My next big leap will be trying to estimate the height of the next swing - something I have been singularly unsuccessful at so far - so any tips will be gratefully received.