White Shadow
Generally agree with your post (and all the others), but please note that Boscombe will almost certainly be active at weekends, due to flying air experience in Grob Tutors with Space Cadets
They're likely to be active from 0830 to 1700, with an hour for lunch (ISTR 1200 - 1300). You may have to call a couple of times, as they may be talking to 'their' aircraft on UHF, which you won't be aware of. Generally very helpful.
Regarding alternatives, if you prefer tarmac and an option in the event of crosswinds that are outside your comfort zone, have a think about Thruxton which is also a very nice place!! A word of caution: In my spare time, I have been known to be active near Thruxton with small handheld things that go bang. A lot of Thruxton traffic has strayed through our overhead below 2k ft, little realising how close they are to perforated fuselages / tailplanes. Beware the danger zones, particularly at weekends; the weekends are usually used by cadets / TA / OTC, etc, whose aim / weapons handling may be a little more suspect!!