While it may be rare for a 9 year old 4th grader, it does still seem very unfair to have a preschool child compete against a 3rd grader or 2nd grader. Perhaps I should have said a 5 year old competing against a 9 year old.
That is a whole different topic that I dont want to address on this thread so we dont confuse people. The two subjects arent tied together. You can change weights without affecting the age groups.