I did all the original development work for Touchwood to get this model to run well and I did an article for Marine Modelling International.
I've watched your video a few times since I found it Ernie...fantastic, in fact thats not even enough, without slipping into slang vernacular, its pretty hard to descirbe!!!!
You just 'know' that what your seeing & hearing inside that cockpit, cant be a million miles away from the view from the real K7...my god man, all you need is a mr Whoppit and youve built a time machine!
I agree with your findings regarding the tailfin and reached same conclusion for both that and the seat, which is also a hefty piece of resin, in fact most of the resin may end up being sidelined for lighter/stronger materials.
I've been searching around for a copy of "Across the Lake" too, with no success, but that looks a good movie, Anthony Hopkins really does look the part, makes Tom "Days of Thunder" Cruise look like a huffy teenager!
I will cut & paste your suggestions for future reference, if thats ok with yourself?
I've seen some of your excellent creations in magazines over the years, your reputation as a leading UK modelbuilder is well deserved.