Always great to read the banter, but I thought I'd lend my (limited, and purely work-related) spotter's powers.
Effortless: there is an easy way of telling the aircraft apart, other than the aroma. The J has six-bladed props versus the earlier Hercules' four, and the new aircraft also has a distinctive black section at the lower front part of its tail, which acts as an ice kicker.
It used to be really easy, because the
Js were all grey and the Ks green, but the new aircraft are progressively going green also now.
Moose