I am sure Bowtech made a concious decision to limit the specs and information available to purchasers. You don't go from the excellent manuals we used to get to the generic marketing brochures with no content that we have now. I would rather get the information all at once than have to make all kinds of calls to 800 lines. My guess is they are trying to steer basic tuning business to the pro shops and or avoid warranty work resulting from owner error type tinkering and tuning.