[TowerTalk] PL-259 question

[John Becker]

Amphenol makes several different solder-type PL-259 plugs.

http://www.amphenolrf.com/products/CatalogPages/UHF.pdf

http://www.amphenolrf.com/search.asp?sid=50A430806CC8617F&N=57+4294966936+4294967230+4294967257

Some have a Teflon insulator, and some are Phenolic. I've seen three 
different colors of what I assume are phenolic: Dark yellow (very old), 
light yellow, and blue.

I can find nothing in Amphenol's literature to suggest which insulator 
is preferable under which circumstance. The Teflon plugs seem to be the 
most expensive, but are they actually any better than phenolic? I know 
it can be difficult to re-use a Teflon connector because the heat 
necessary to unsolder them can cause the center pin to shift.

Can anyone pass along some enlightenment on this subject? Thanks!

73, John, K9MM