Toyse - I would hold off on getting the mount. The one in the kit is the Chinese imitation of the MK, and I've found it to be pretty good. I think others have been using it with success on the YS 110, too. Just follow instructions, use the right kind of Loctite and you'll be good to go!

The popularity of this Excelleron is almost becoming a "phenomenon".
As I wrote earlier - it's good enough that I have TWO - and I don't do that very often!!!!!!!!!!!!!!