Today I got the two K's I ordered. WOW, I got a 20" Custom K, Session Ride, and an 18" Custom K Session Crash. I am really impressed with the sound.
I had a pair of old Zildjian Hi-hats that I do not think I can duplicate the sound of, and I am using an old Zildjian 16" crash that I bought used a thousand years ago. There are holes in the 16", and they look like factory holes only because they are spaced evenly and symmetrically. I have a pair of pre-ludwig Ghost pedals and an old very heavy duty Slingerland Hi-hat stand. Other than that I am set.
The overall sound of the kit blends well together.
I have to admit something here. I went to the Zildjian site to explore the sounds of their cymbals and made my selection of the K's based on that web site. All the stores I visited did not have the Session K's, and a few had not even heard of them before.
But, I was able to compare what other Ks sounded like on the web site to what they actually sounded like in the store. This was a good bench-mark for me to judge how accurate the web site duplicated each cymbals sound. So what I am saying is that I never touched a K session until I opened the box today.
You would think the other cymbal makers would do the same thing as Zildjian, unless Zildjian has some intellectual property rights on that practice.
Evolving_machine