Echhhh, I HATE it when they go above 43% *^%$ pointless. I've only seen 40% Glenmorangie where I am.
Glenmorangie is my third favourite malt. I know what you guys mean about it having a bitter finish. It doesn't bother me but I have a hunch that it comes from the char on oak barrels - Glenmorangie being heavy on wood flavours. That's what it tastes like to me, anyway, slightly bitter carbon char.