I have a smallish 30 caliber Lyman mould which has a heel and drops like a dream from the moulds. I bought a couple thousand 22 cal gas checks when I bought the 22 cal mould, so I have been using them, but I suspect I could probably forego them without any serious issues. Lots of stuff to play with. I guess I could be one of those odd-balls at the public range who attract other interesting oddballs.
I wish I could get a 22 mould similar to that 30 cal mould, but perhaps that's overthinking things.