I was at Silverstone with the Toj SC302 3.0ltr DFV sportscar, a support race for the 6 hour of Silverstone race last weekend. The Le Mans cars had the new garages with the historic cars placed by the old pits.
The Historic assembly area was the old pit lane, the start and timing was the new pit lane. Silverston laid on a bus for the transfer between pits but it still took 10 minutes to get from the car leaving the old pit lane to the crew getting to the new pits.
Come on Silverstone if you insist on using the new pits for timing, why not do it like they do at spa? use the old pits for driver swaps etc yet time it from the f1 start. It works!!