I think we need some balance here.
Whilst I have sympathy with anyone who has to go around due to somebody hogging the runway, I must speak in support of the Duxford folks.
I have flown in to Duxford on two occasions, the second being a CAA safety day. Despite suggestions to the contrary, I found the service to be excellent on both occasions whilst mixing with much faster traffic as I negotiated the circuit in my 50hp hotship.
JW411, give them a chance