I never did until I got the confidence to do so by trying different settings on my C-75. I followed @AdamCord’s advice, read Fin Whispering, and learned. On my C-75, it was as simple as changing wing angle. On the C-85, I have learned how the ski runs for me as the water has warmed and already have idea of what will work in the fall. Even if it doesn’t, I’ll learn something.