Apologies if it's been asked before...
Just fact-checking myself... the Master Lock 570, 575 and 576 All use the same core. The 570 and 575 are the same lock except for the body material (aluminum vs brass). And the 576 is the same lock as the 575 except the body is wider and the shackle dimensions are longer, thicker and wider.
Is this correct, or have I missed something?