After a few weeks of waiting, the arm pistons from Fenix Props arrived this afternoon.
These parts made the trip all the way from Argentina. Fenix Props sent them about 2 days after I made the purchase. They gave me the tracking number so, of course, I checked on them every 4 hours to see where they were. Most of the 2 week wait was taken up with them sitting in an Argentine post office doing nothing for 7 or 8 days. I was almost getting worried!
Upon first inspection the build quality seems very nice and I'm extremely happy with them, which is good since the price was so ridiculously high.
Once the arms arrive I'll give an update to the fitment...