Good thing I play-test difficult battles before challenging players then... If that guy can't be held, someone will have to tank him...
Could you re-phrase answer 1? I don't think I get it.
It basically goes like this: let's say the scorpion has 4 pincer attacks.
In the event that he hits with at least one of them, he initiates a grapple.
Possibilities:
1st strike hits - initiates grapple and deals damage three times.
Miss the 1st, hit the 2nd - initiates grapple, deals damage twice.
Miss 1st and 2nd, hit third - initiates grapple, deals damage once.
Miss all but fourth - initiates grapple.
Note that subsequent damage from further attacks only happens if the contested roll is successful.