Weird. Never had this problem on any Spectors I've owned when I've had to use a .130 in a pinch (D'Addario XL's, prefer .125 or .120 normally).So, anybody got any suggestions on that? I can't angle it down on the thread. I don't have files. My thumb is literally black & blue from trying to push it down on the thread.
But I have run into this once or twice over the years with other bridges. Simply take a regular (not needle nosed) pliers and squeeze the string at the point it sits in the bridge slot. It should flatten it somewhat enough for you to fit it in. It's a much easier solution than filing your bridge.

