I was up in rainy ole Canada last few days. Got so damp and flustered I got my Ohmmmmmm's backward and started uttering Mmmoooooooh's.
Didn't do much for the fishing,but attracted a huge black bull who appeared to be either lovesick or angry.There's little difference between the two emotions in Bull language.
I doubt it would have mattered at that point how I held my mouth or which direction I chanted.
Will fishnfella ever learn the way?
Do hungry trout bite on Mayflies?

Doreen Lake was red hot on Mayfly nymphs.
Looked to be near the end of the hatch though.