MH,
It's not as though we currently have jet traffic buzzing around below the London TMA at 2000' mixing it with the Cessna and Piper traffic! The only stuff I sometimes hear/see is going into Southend.
EGLF has annual movements of around 28,000 per annum at the moment, the bulk of which are jets and which have to get in to and out of the airways system to and from EGLF outside controlled airspace... so, err, there is rather a lot of jet traffic up to 737 size buzzing about below the TMA in that neck of the woods.
Oh, and Lasham has quite a few jet movements as well.