Didn't even know about pinless blades when I did it. Been reading up - "how can they do such intricate stuff when you have to drill a 1/4"+ size hole for the blade?"
My saw came with two clampy things it says you can attach to a pinless blade and will let you somehow attach it to the saw. But it doesn't actually give instructions or a diagram on how to do it. (Harbor freight saw) I ordered some pinless blades so I can try it out whenever they get here (they don't sell pinless blades at my harbor freight, lol)