qwerty: Yep both mags have two sets of points. The second set in the LH mag retards the timing for starting and the RH mag has the tacho points which is one of the inputs into the governer controller. If these points close up the gov won't work.
quindici: I've never seen anyone try to repair a damaged stabilizer, but I expect a decent sheety would be able to give it a good dab. Easier to replace in my opinion. The upper and lower vertical stabs unbolt and remove and the horizontal one can be replaced individually. Expect to pay a rediculous price. Can look it up on Monday if you like and let you know.