I knew Dick pretty well starting at Bicester over 40 years ago. He was a very clever guy and also very practical.
I remember taking a Kestrel 19 over to Bicester to have a mod done on the actuating mechanism at the base of the rudder. The engineer started talking drilling holes in bolts and inserting split pins.
"B*llocks" said Dick "use stiff nuts". "Not happy" says engineer. "Dear boy" says Dick "entire American aircraft are held together with stiff nuts. Why in God's name do you want to start a rabbit warren"!
So stiff nuts it was.