excellent used with Lycro 33mm mic in BM 800 body. Sounds great. The board hopes don't match BM800 but I used small plastic ties to mount. Important note. Make sure you mount this board on the side of the microphone body that sits furthest from the XLR center pin. If you don't pay attention to this, you might get a short from that pin to the board.
I'm using with a 34mm capsule on a BM-800 modded body, it works like a charm, very good audio quality.