If you are looking to "crack" the standard look for high contrast or experimental results, photographers often use these methods:
It seems you're asking about the process for developing photographic paper, often used for creating prints or paper negatives in a darkroom. The "FullMacCrack" term likely refers to a specialized technique or a specific (possibly informal) name for a high-contrast or DIY developer recipe. Standard Development Process | FullMacCrack
: To ensure maximum black (Dmax), always develop until the image is "complete" rather than pulling it out when it "looks good". If you are looking to "crack" the standard