Smoked trout should be flaky - typically,I've found about 1 to 2 hours at 220 does the trick,(depending on how cooked and how much smoke you want); the skin pulls away easily (you can actually see it drying out and pulling away from the jaw just a tiny bit exposing teeth), it's not mushy and the eyes are really dull. I know this doesn't help much but it's more of an art than science...the flesh comes out kind of a color that's somewhat white but not "bright" white. But not grey (gray[?]) either. Except for the pink trout...then that's pink of course! The whole fish should have a kind of "orangy/yellow" color to them but just a slight "orangy/yellow" color...around the edges sort of.....(the color is from the smoke)
If you've grilled them, then you'll know what to look for in the way of color and doneness. Just takes longer on the smoker...
And yes, they will be ready to eat[:p]
I wish I could give you more info but quite honestly, I've been doing them so long, I can just sort of tell just by looking at them
I would suggest that you go to the store and pick up a couple of "testers" and try them out first if you are not willing to send your hard work in the trash!
We've all had to turn our head sideways in trying things out for the first time!
I do wish you the best of luck on them!
"A mans got to know his limitations"
Glendora, CA - USA!