Honestly I think they have all had that problem even when new.
I think it's just the way these distributors pick up coils and advance plates were designed.
I have to admit I love mopars and everything but the design of this pick up coil and advance plate isn't my favorite.
Now I'm to the point of considering just buying a firecore distributor, although I'm not sure if the firecore distributors have the same pick up coil and advance plate.
What pisses me off is Don at Fbo systems claims to solve these issues by welding the pick up coil plate and advance plate where most of the slop comes from and the one I bought from him looks 100 percent stock inside, no modifications to the advance plate or pick
Up coil at all.
So I'm at a point of do I pull this distributor out and attempt to get the pick up coil and advance plate tighter in the distributor or should I just throw this thing in the garbage and buy a firecore.