Ok, so I bought these off Ebay last Winter. They have been solid mics, in the auction they were stated to be "SP-CMC-8's" which they are, the seller said he bought them a while ago, and they are model: AT933's. I know the 8's on SP now are ES-943's (right). What model do I exactly have, and most importantly, can I buy additional caps? People on this board, and SP say that I should be able to simply "twist off" with my hands the cap of the microphone. No luck, this puppy is on rock solid, is it just tight from someone using a tool, or what? I am confused and I'd really like Omni Caps...Here are the pics (I Know they suck). Thank you.