You drop a couple of places because you have less 2nd and 3rd place scores than the 2 guys who overtook you.(posted 10013 days ago)I gain the most because a lot of my scores have been beaten into 2nd or 3rd place and I've never got them back.
Remember I used to be top of the leaderboard, and got knocked down off the top ten while I was writing a script for YOUR BENEFIT!!! :o)
Zwax.