Combo edges generally leave you without enough plain or serrated area to do the job that type of edge excels at. For example, if you're going to slice or chop, serrations don't help. If you cut a lot of fibrous materials, like rope, they do.
If you definitely need serrations sometimes, you're better off carrying a dedicated serrated blade, maybe a Delica or Salt, than compromising the slicing ability of your Chinook.