I think you may have misquoted me instead of August.
I will say I am only one year into the hobby and I am very happy with my European beech.
And Andrew Robson recently released a podcast about recommended deciduous bonsai species and he also suggested European Beech. I think there is a reason you see these being offered from places like Appalachian Plantworks and Left Coast Bonsai.
Check out this segment for more details. It is very specifically European Beech being discussed though :
beech discussion begins at 21 minutes into the episode.
They also discuss the beech leaf disease and suggest you shouldn’t let it discourage you too much unless you live in a beech forest.