(thud---sound of sledgehammer hitting the idiot)
81,
good gawd, how did I ever overlook that!??! You are absolutely 100% correct. I guess I do have the 2 spring train. I think what threw me off and/or confused me was the other diagram under the title "Helpful Information" which shows that both K1 and K2 have the plastic and 3 spring assembly. See the attachment. Also, on the right side of the same instruction sheet, it shows the B1 accumulator spring train as either being a 2 part or a 3 part spring train.
So for others reading, 81 is right. The K2 has either a 2 spring train without the plastic pieces that mate together like the K1 or the 3 spring train with the two plastic pieces. this is shown in the 2nd attachment
So I'm good to go to install this weekend