Thanks one & all for your comments & suggestions and I'll try and keep them in mind on my next flight.
On a slightly different topic I went up in a Pitts SB2 today for a different view of the world & Sywell aerodrome. Waggle the stick & the world below waggles back! Waggle too much and my stomach wants to jettison breakfast. Great fun but I think I’ll leave aeros to those blessed with cast iron stomachs.
Thanks once again
Pogs