Well I have to plead guilty to being the one who first suggested Strensham as our Southern operating base! In my defence, there were a whole host of requirements that came before consideration of low flying fast jets. Firstly, it had to be in the best position for the required coverage - additionally, we had to consider crew travelling time, public access, noise complaints etc. Operating from an active airfield brings its own problems, ATC delays, visitors airside, circuit disruption etc.
I would also question whether Defford creates a choke point or whether it is actually used as a target for training sorties!
I for one would not like to see any huge restriction on low flying training in the UK just so long as the Jet Jockies are aware we are there and are keeping a good look out.
TeeS