Hi simon, i have a few of your books, and in one copy i looked at recently it has a tip about arriving at Fantasmic 45 minutes before the show time to get a good seat.
Last summer i was a cast member at fantasmic, and during the busy summer months we were at standing room sometimes an hour before the show!
A better tip for seeing Fantasmic would be to avoid Studios EMH nights completely, avoid trying to see it when the Magic Kingdom closes early for Parties (EVERYONE seemingly comes to the studios once MK shuts to see fantasmic) and always try for the 2nd show.
45 minutes would be okay in off peak times, but not peak!
Last summer i was a cast member at fantasmic, and during the busy summer months we were at standing room sometimes an hour before the show!
A better tip for seeing Fantasmic would be to avoid Studios EMH nights completely, avoid trying to see it when the Magic Kingdom closes early for Parties (EVERYONE seemingly comes to the studios once MK shuts to see fantasmic) and always try for the 2nd show.
45 minutes would be okay in off peak times, but not peak!
WHSmiths and 

- in more depth than you already cover.