Hey, Pete ...
Not me that made that post !!! . My avatar is a waving CDN flag, not stationary !
Yes, I am quite familiar with the Sierra click pen offerings as I have made a lot of them. . The manufacturer did in fact discontinue the particular version that I think is being referred to ... the one with the internal extension tube.
I now like to use the version which might be named "Elegant Button Click Sierra", which has a brass tube length of 61.5mm. . I mainly use the plating option which is called Satin Chrome/Chrome. . I like the soft click mechanism.
However I have found things very confusing with regard to the Sierra click brass tube lengths since Berea discontinued that old version with the internal extension piece. . There are now a number of tube length options and various corresponding kit names that I can't keep straight in my mind.
I find the Bear Tooth Woods website to be a very useful reference for refreshing my knowledge of what's-actually-what. . I also buy from there because Ernie is the only vendor who has made it his business to clarify the confusion as much as possible.
Mal you can also leave the tubes as they come and put in a Uniball 207 refill. It's longer than the Parker refill that comes with the kit by the extension amount. Do they still make those Sierra Clicks with the extension? I thought they stopped making them in favor of kits with shorter tubes.