Nope! I always struggle at Silverstone, I hate it, I much prefer the longer loop though. 1st race I was sat in the grandstand at the outside of Copse, 2nd race I was at Becketts but it was busy and I could only wedge myself in for a few shots (luckily I caught the Austin incident and gave up and just watched the racing. Third was was up in the stands at Luffield.
Also keeping an eye on twitter and facebook means you can find out about signing sessions so even if you can't get on the gridwalk you can 'bump' into drivers. I met Paul O'Neill just as he was doing a Q&A sessions and the Airwaves drivers had a signing session in one of the merchandise tents.