http://www.gpo.gov/fdsys/pkg/FR-2011-08-12/pdf/2011-20519.pdf
Mike S Senior Curmudgeon Aug 19, 2011 #1 http://www.gpo.gov/fdsys/pkg/FR-2011-08-12/pdf/2011-20519.pdf
tmbg Well Known Member Aug 19, 2011 #3 non-counterweighted engine is looking like a better and better choice!