A second star card recurring defect I don't recall hearing anyone else talk about somewhere is on Ed Mathews. White blob across from mini-B&W Mathews arm, crossing into the blue backdrop from the border. This defect is significantly less common than the correct copy, but I don't recall it being super rare.
If I know about a defect in advance on a star card, I usually try to pick it up for my set and just skip the correct copy. Having all the defects is super fun when it costs me $1.25 for Jerry Lynch, it's not super fun when its $20 for Mathews or $150 or whatever it is these days for a Jackie
EDIT TO TAG PROPERLY FOR SEARCH FUNCTIONS: 1954 Topps #30 Ed Eddie Mathews