Hi, 
Our flight is at 12.10 so 2 hours before that we need to be at the airport at 10.10am  so 70 minutes transfer means a 9am pick up but I’ve chosen/selected  8.45am pick up just so it gives us a bit of Extra time incase of bad traffic etc does this sound a good idea? I’m happy to be advised if you can get back to me once booked? Many thanks.