The Mark 27 Cutie was a very valuable weapon in the last year of the war... saving the bacon of many US subs. It doesn't roll in the tube well? Could this be a result of the fact that they were intended to swim out of the tubes? Suggestion for TORSK, since the Cutie (the second to the last torpedo you fired at the Coastal Defense Vessel, not really a DD) was fired from that tube, why not put one in said tube?
As for the Cutie itself, the orange head is a color used after about 1960. The exercise heads for COD's focus date of 1952 were yellow, so we removed the orange and used yellow when it had to be restored. It looks like the Cutie has the "as-built" exercise head. This was too expensive for the Navy to order all they needed. So the USN decided to take the explosives out of standard warheads and back fill them with a plaster-like mix for ballast. If your exercise head has this mix as ballast, REMOVE IT!!! It holds moisutre and eventually your beautiful exercise head bubbles up with rust from below! It nearly destroyed our head, but an autobody repair shop was able to do wonders in restoring it ($500, even with a generous discount). Our war/exercise head lacks the cast-in ring on the top and has an open plug for the detonator. Your cutie looks to be in good shape, and that brown coating is tough to replicate if it is lost.
PF