Lee 2-cavity and single-cavity molds are absolute trash*. All they do is cause the user frustration, and extra work.
But, if you're willing to deal with that frustration, they get the job done quite cheaply.
Lee 2C molds outnumber my other molds 2 to 1. They're trash, but they get the job done. Once you buy a real mold from another source (RCBS, Lyman, NOE, SAECO, etc), you'll understand.
*Seriously? The "C-word" for poop is filtered here, but bitch and rape (almost universally filtered elsewhere) are not?