when casting boolits, using lyman #2, is it better to have the temp set so that they are shiny or frosted, I think I have been told frosted, but wanted to double check. also, was using a new lee mold, and had some problems with the gas check shank filling out. I added tin but didn't really need it, the rest of the boolits filled out great. if the sprue plate is too tight, can it prevent venting? or is this just the trials of a new aluminum mold? it wasn't too, too many, maybe one in 15-20. just wondering, thank you, Travis