Hi Paul,
I tried Hends in the early 2000's and they were OK. Local product, thus easier and cheaper for me to get hold of than the imported stuff. I still have a couple spools of Synton and Grall somewhere on the bottom of my tying chest.
Synton is two strands of thin mono - good for smallish flies and tiny heads if you are into these - but does not hold dubbing easily.
The biggest issue I had with it was the narrow spool. I found that very difficult to work with and it was the chief reason I switched to UNI. Since then I never looked back
J.