Yup! I have used this fly in lakes as well. Works good! Also I use size 8 dansville for spinning moose. Not sure if that’s close to what you were using or not.I liked the looks of this so much I tied up 4 yesterday. Found 140 denier to thin for a moose hair dubbing loop so switched to 210. Local rivers are all 70+ degrees so I took one to the lake just to see it sub surface. Could see why it catches anything that's willing. Like the pattern a lot and am looking forward to using it when waters cool. Thanks for sharing.