[@Romero]A way to solve this is to take every claim without NS tentative and depending on pace even null after a set period.
So no person can just sit on the claim and hold back progress.
I also notify that while interested I have too many other RPs to seriously participate. This is a bit of good news, though. I know that there are a few people who don't like to play with me so you are potentially saved from a bit of headache.
I wish only the best luck for your game.