News flash, I just used my first couple of chunks last night, and upon inspection I was able to peel the bark off like the outside ring of an onion- fairly effortless process. Very glad too.
Yes I agree chunks are easier to keep the bark content down especially in the manner you described. Another advantage is you don't 'have to soak them. I just lift the hinged grate, toss a chunk or 2 on and I'm done whereas with chips you have to go through the trouble of soaking them and it's hard to tell bark from wood sometimes. The downside with chunks is, I go through chunks faster than I would chips so it's more expensive but then sometimes I'll just load the chimney with nothing but wood chunk and man...
I'm not worrying about what the fuel cost when I'm eating the final product I promise you that