John - We sometimes look at too small a sample to get a realistic view of what is still in existence or what was actually produced. At one time, I owned more Grumley Hunters, than other models of Grumley bows. For me, I have owned 12 Grumley Take Downs, and only one is a Hunter... and of the six you have owned 4 were Hunters. I know none of these 18 T/D bows are counted twice. Either sample by itself is totally misleading.
It is even doubtful that both samples together would closely represent the actual proportional number of each T/D model produced.
At this point in time, given the total number of all Grumley bows that I have seen, I would have to agree that there are fewer Hunter's known to me than Bush Bows or Deerslayers.
Even though it may seem logical, given our small sample size of perhaps a couple hundred Grumley bows, I'm not sure we can extend that to assume that fewer Hunters were actually made.