Concerning the "touching" of the Crown and the M, I did a highly scientific study (I examined the 8 or 9 Imperial Navy guns that were close at hand and ALL had the browridge of the crown slightly INSIDE the top of the V portion of the M between the two uprights.
FWIW, I know these guns are righteous.
Tom A. <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />