I use 8 lb power pro in moss green and 10 lb fluorocarbon leader (Seguar), about 3 feet. I shifted to uni knots for salt water fishing, skinny water (20 lb pp and 40 fc) and use the same uni knots in Quetico for ALL applications. Maybe a palomar knot works better, but I've never had a knot pull in 20 years of fishing and the uni is easy for me... Do keep the knot moist when tightening though! The only tip is, I use 6 wraps on the PP side and 5 on the FC side of the joining knot. With heavier FC, you can go down to 4 wraps as the line is stiffer.