Radrog,
You have a pair of excellent speakers, independently of tweeter cost. If you had bought the tweeter from Krell it would have cost you the double, but I think they would have measured it and sent a selected matched unit. Many, many years ago when I used to build my speakers I measured tweeters and found great differences in sensitivity and frequency response of standard tweeters, even from the same batch.
Look at tube costs - a special tube selected for low noise and a special gain can cost you five times the cost of an unselected tube.
Usually when it comes to excellence we have to pay some more!
