I'm looking for a set of trekking poles.

Here are my requirements:
As light as possible
Must collapse to around 22"
Must have a grip that accepts a 1/4-20 stud threaded into the top of it (or I must be able to install this type of grip on the pole by myself)

So far I've found Gossamer gear poles. The LT5 looks like it would be what I am after, but I don't think they have the threaded grip. The LT4S seems like it would do what I'm after (not sure of the thread pitch in the insert), but they don't collapse short enough.

Which poles would you recommend?