Quotes from USL website:
"Teams organized by single birth year or single grade are suggested, but if a league needs to group two years/grades together it should strive to limit the maximum age difference between players in a youth game to no more than twenty-four (24) months."
"2015 Age Grouping Quick Reference Table
Birthdate Age Bracket
Born on or after 9/1/1999 U15
Born on or after 9/1/2001 U13
Born on or after 9/1/2003 U11
Born on or after 9/1/2005 U9"
Looks like USL is ok with 2year, single year, or grade. Insurance coverage seems to be secure for whatever the sanctioned league or tournament implements. Address all complaints to USL for their vagueness. Just because you do something differently does not make it cheating.
