This mount works really well, however I had a bit of trouble getting the extruder housing to snap down onto the mount, because the gap from the back to the part that goes inside the extruder was slightly too small. I increased the bottom gap by 1.3mm and now it sits down nice and snug.
It might be, since the clone / Bondtech was released, they've slghtly changed the design.
Full credit to Inhaler for the original design. Works superbly!