I visited your website and very much like and respect your photography so I certainly won't flame you. But I must ask, how would you define "using them appropriately"?
I shall be the first to admit that I'm no screamin' virtuoso when it comes to technique; however, my Leica glass gives me something in my images that I never see when I use my Nikon stuff. My Leica images just have more life to them. They paint nicer pictures, all things being equal.
For instance, there seems to be an anti-35 Summicron ASPH movement afoot on RFF. Well, I bought one of those lenses new and I think one can create sparkling images with that lens. I've taken portraits with that lens that show very pleasing renditions of my subjects and not bad bokeh to boot. Likewise with my new 90 Elmarit-M f/2.8. Call me crazy, but I also like the images from my latest version 50 Summicron!