well I've prodded poser a bit and here are my results

for redistributing refitted cr2 hairs - you would need to zip each one and encode each one to its master file (the hair obj generally). Yes, this is a nuisance, for you and the end user, but its the only option aside from getting the creator to redistribute the files themselves.

For redistributing any hair that was refitted via pose - simply save and share the pose as normal. For an hr2 hair use the 'save subset' and select just the hair so you don't include the figures pose as well

For refits created via morphs -
Option A well in theory you should be able to create the pmd containing your morphs, and a pz2 in notepad to load or inject them. Pretty simple with a tutorial (which I will write if needed)

Option B - the morph should be exported as an obj and then it needs to be 'z stripped' or 'prepared for distribution'. Poser toolbox has a tool for this, and there had been others years ago when this was a more common issue. I don't know if any of those other tools is about. The end user would then load the morph manually into the hair themselves. I know users these days quail in fear at manually loading morphs, but its not all that tricky.

I do have to say of the 5 v4 hairs I messed with while checking this out pretty much all of them converted fine with just scaling and positioning, which saves nicely as a pose. With cr2 hairs I didn't conform them, just scaled and moved and parented to the head. So that is a valid option. I did not check hairs made for other figures.

Lyrra