I don't know any of the fellas guiding down there this time of year personally, so I can't make a good recommendation;)

BUT, a question, especially going into February and March, why the COW??

Any of the better guides on the more northern OP streams are:

gonna have every bit as good of a shot at numbers as a Cow boat;

take you down in a much prettier setting;

take you down with fewer people around;

take you down in a quieter setting, no power;

give you a better shot at a greater variety of ways to catch a fish;

and certainly give you a shot at bigger fish!

Just a thought I can see the Cow fellas sending nasty notes already :p