Great report and congrats on the nice catch!
I have not had too many problems getting bit at Hagg when the sun is shining. What I do is start letting out an extra 10' on my rods (while trolling) until I find them again. In low light I am often 30-50' back. In the sunshine I often have to go to 80-100' back. Sometimes I will add more weight but usually just getting deeper by trolling a longer line is all it takes.
They don't just have food at the Lakestop store, they have the best fried chicken in Oregon