[Yak] Anything unusual about Bike Friday headsets?

[Bob Lovejoy]

Sorry for this probably unnecessary question, but just wanted to make sure
before I head into an upgrade / replacement of a headset on a older Pocket
Llama.

Is there anything unusual or anything special to watch out for in replacing
the HS?  I do a lot of things on bikes in general but I would probably be
taking this work to my LBS.  If there were special considerations, I could
give them a heads-up or alert them (and me!) to any imminent confusion.

Sincere thanks for any help,

Bob Lovejoy
Denver, CO