Since you ask, 521 par 5, 553 par 5, 442 par 4. I'm not sure but I believe it was the longest start in more than Surrey for a while; haven't checked it but was told the longest start in Europe until something in Germany was built that beat it.
What I'm sure of is that you don't want to save your Surrey 5's game on the 18th, only to lose it on the 21st; it's a long uphill walk back to the clubhouse.