Yes, I have been thinking about this oil filter loosening problem that seems so pervasive with the V11's - only to conclude that the problem may rest within the accessibility of the filter through the hole. Many of us have always been under the assumption to always hand tighten 'spin-on' filters and never use a wrench, so perhaps too many owners tried to tighten this filter through the hole by just using hand pressure, which, it damn near impossible to do!