Meister Scale's 102" Me109 plans indicate 8" from the leading edge.... turns out it's supposed to be 6". 2" is significant, even for a plane that size, and I have heard that several people have lost this plane on maiden as a consequence. Does this mean that Meister Scale plans are poor quality? Some might argue yes, but I don't think so. You just should never jump in blindly. It literally only takes a few minutes to do the calculation or search a thread to find the best balance point where the model flys best.

Calculate the 25% of the MAC yourself, or research, read, and ask from those that actually have experience flying your model it takes only a few minutes to get the answer you seek. A little bit of time spent up front can save you from serious heart-break!