Hi,
Finally receive my Borg Helical Focuser yesterday...

Thanks to Remus and Michael.
First impression, it is quite well built and to my surprise :o the focuser can directly screw to my Sky-Watcher ViewMax 127 eyepiece adapter...

I also discover a problem with the focuser, the front interface is actually not a "real" 36.4mm, it use a step up ring to step up to 36.4mm and the connection between the focuser and the step-up ring are not perfect... a bit of shaky. Hope that it won't affect the focuser.... :?:
Now waiting for the weather to clear...