I’ve noticed that a lot of guys who are not “flutists”, ie: they play flute but it’s not their main instrument, use different headjoints to get better sounds. For example, I believe both Guido Fazio and Larry DeLaCruz are using Yamaha student model flutes (plated body, closed hole) with Sankyo headjoints. I haven’t ventured into this area yet, as I’m still using my Yamaha 581 with the CY (I think) headjoint. Though, anyone have any opinions on different headjoints?