[Elecraft] K2 Trimmers - Which flat side?

[eKotz]

Folks,

I have successfully reached my K2 Assembly, Part III, pg. 65, trimmer 
installation step.   The red marked trimmers were no problem identifying 
the orientation.   It looks like the 30 pF trimmers are different than 
were in the older kits and there is my difficulty: The 30pF trimmer caps 
(C32, C34, C44 & C46) have two flat sides... a large flat and an 
opposing small flat and my question is... which is the correct flat for 
proper orientation?   --I did not find this in the archive... I may not 
be phrasing my search properly.--

Thanks,
Ed - AD7GR
K2 6050