> I think that an article by BPL states that when you wear a poncho, it is a matter of
> when you will get wet, not if.
Well... yes, sort of, but with proper sleeves on my MYOG poncho I get slightly damp sleeves on my MYOG smock, but not really 'wet'. I stay reasonably warm even around freezing, and the smock does not have any DWR.
On easy country I do often pull my arms right inside the body of the poncho. They stay drier that way. However, this has a hazard with a close-fitting poncho done up right down the front: I fell over once and could not get my arms out fast enough to break my fall. So these days if I have my arms inside I leave the front partly open.