Hi Bob... Here are your last 14 ranked rounds:
WGT takes the average of your last 14 rounds (with a bit more weight to the last 3) to give you your ranking... Your last 76 knocked off a 37. And from this list, (without crunching all the numbers), I would say that 70 is about right.
Although you may be right and there may be an issue worth looking into... it's just not likely.
Peace.