[Elecraft] K2 turning power behavior

[S55M]

Hello guys!

Question 1:

Today , while testing my K2 with S53WW designed "Javornik" bullet proof 144Mhz transverter (http://lea.hamradio.si/~s53ww/xvrt/xvrt.htm) i found strange (OR MAYBE NORMAL) behavior of K2 while turning Power button.
So...if i press the PTT (dot line on keyer when on USB) without talking (or maybe also with ssb modulation because i did not test it) and turn the power button on 100W and then reduce the power back to minimum my K2 stops transmitting.I must then release the PTT and press it again to go into TX mode.
Is this happening with all K2's?

Question 2:

I am thinking abt routing 2mW 14Mhz signal at the end of BPF's to transverter with 1N4007, like is done all over the K2.
Any sugestions about selecting the rigt ones or it is Ok regardles of type and manufacturer?
What is the attenuation of such switch and how good (bad) is the actual crosstalk?

TNX!

S55M-Adi