Adam and Dave, sounds like you're also happy with their products. Seems to me that some of the newer astro products out of China are really getting into best-of-class territory.
Jason and Hans, yep, I ran off and ordered the Askar focus kit from AliExpress as soon as I heard about it. Good to see Testar is now also selling it at a very competitive price. Wasn't aware that there was also an alternative product. However the Askar price does seem to be a little more attractive, as both items are basically the same concept.
Mine arrived a couple of days ago and it's one of today's projects to install it. I'll probably post a pic although there's plenty to see on Youtube already.
Hopefully Nina with Autofocus will further improve the generic-quality of my Southern sky widefield happy snaps