No worries. I generalize - wrongly - about metal alloy tweeters as being overly bright, and naturally gravitate to ribbon or silk domes because of negative experiences with most metal tweeters. I have read the NE shootout experience, but that's just one speaker in one room with one crossover design, and not indicative of general driver performance at all. IMO nothing beats a well-designed speaker with ribbons and planars, although there are high end manufacturers who have tremendous performance from beryllium tweeters, which I'd be interested in owning again someday.
Diego likes his Martin Logans, if there is a way if improving what he has with what he likes then this is a path worth following.