Bonlander Munich (light) is 10L vs Weyermann Munich 1 at 5-6.9. Munich 2 (dark) is 8-10 vs Aromatic malt (Briess dark) @ 20L. I do believe it was Dr Axel Goehler who noted the Eu maltsters kiln those malts lighter than US ones, and gave reasons for it, though I can't recall the reasons. Might have been tradition. It just happens that those are the two brands I use most, and more than once my "inventory" hasn't crossed over well when I needed to make a substitution.