Headsethair - that is their way of trying to move the blame for GA infringements, they are saying that with such a huge number of aircraft movements, the number of infringements is small as a percentage. That is true but lies, damn lies and statistics doesn't get away from the fact that the number of infringements occur, 'each carrying with it some degree of flight safety risk'.
Crashondeck - to my knowledge the FJ don't monitor 121.5, only 243.0 but they should hear a TDA broadcast in most parts of the UK; where they don't, then such is life,we'll carry on with lookout and hoping they see us. TDAs are not perfect but they're all we have.
SASless - and you have to get someone to pay for the radios - we often suffer from the 'we've done it this way for 20 years and didn't need radios then' sort of mentality which is why we are still flying with the same cr*p avionics fit in the Mk3 Sea King.
As for the Reds - I once listened to an air trafficer (at a grass airfield in Hampshire) give take-off clearance to a Cessna just as the Reds had called running in from 5 miles to start their display! And he did!