Stan, I've had my Poke Boat for about 28 years now....and I love it.
I don't have fine doubles, but I have old doubles...My Citori of 32 years has killed at least a thousand birds in Vt, Maine, Md, NY and god knows where else. My Iver Johnson Hercules from the 20's (I think) with bismuth has killed a few and lastly, my 10 ga. Rem 1894 of 1910 is my late season diver gun here on Champlain. I haven't dropped any overboard yet, but they've all been rained on, snowed on, etc.
I bought them to use 'em....
Mergus