I think the two most common things that cause problems when you first start down this road of insanity are a: platforms are not set up below the center line and b: underestimating the importance of grinding those platforms. I'm not saying that support isn't important , but with a well set up platform even mediocre support should give you the result you are looking for. When the platform is done right it takes a lot of stress off of the biface and allows the flake to release easier-ish. Or something like that. (gettin down off the soapbox) anyone else? Lol