The trick with the 33 end is actually to be much further back and much higher, also to be armed with a good telescopic lens
Check out flugsnug on youtube, his videos give the appearance that he's sat right at the end of 33 but it's just not possible with the hills that are right next to the A45.
There's also the long stay car park which gives some great views but you'll need a step ladder or something to stand on. Security are fine with it as long as you aren't leaning over the fence etc, but always be cautious, it's a live aerodrome after all!