Thanks for the comments people, I've just noticed this topic after posting mine, oops!
The grey one was my mate, was his first time up the strip and he's only had the car a few weeks. It's running stage 1. His first couple of attempts were 17seconds

He had a few more runs after the rain and did consistent high 15. He's dying to get a bit more practice, improve the times and get the car sorted though so good luck to him
Cheers Brad