The deepest I got Kokanee trolling was 85' at Green Peter Res. Now jigging that's a different story. Last year at Odell it was 120' to 130'. The very deepest was at Odell, it was 135'.
I found as a general rule, trolling that is, Paulina, I would start at 30', Odell would be 50', Wickiup, I usually fish that with lead core line, one to three colors depending on where I'm trolling at.