The formula the IGFA will use is based on their data base containing hundreds if not over a thousand bass submissions they've recognized in the 10 lb Bass Club. The formula is the same except the denominator is 914:

For this spring lake fish:
(LxGxG)/914 = (29x25x25)/914 = 19.83 lbs

By comparison, Mike Long's 20.75 lb Dixon fish:
(27x27x27)/914 = 21.53 lbs

If the length and girth measurements don't add up to the claimed weight, or come at least close, it's a no go. They're off by almost 12%. When you need to beat it by 2 oz, and you're off by possibly 2.67 lbs, they (IGFA) will mull this over for a while, enjoy the publicity and use it to enlist new members (which they need) and kill it.