Can't really add much to the good advice already given...except to apologize for tardy response...just getting back into the swing of things after completing a too long period of chemo...life is great once again!
As pmmPete said, consistency is a goal...recognizing that there are variables in salmon, e.g. kind, size, etc, stick with the method you like then adjust your consistent method to the particular salmon you're smoking. Once you get that to a comfortable stage, all gates are open to experiment away...my recipe and method were always intended to give one a successful "launch platform"...many seem to stick with it, while others add/subtract as their own tastes dictate. Have fun and 'Keep On Smoookin'"!!