I do have one of these (or, at least it looks EXACTLY like it, and it is a non-WICO).
It has two different sized actuators, one for 4-way and one for 8-way (just like the Happ's Supers).
It DOES have two diamond shaped restrictor holes, just like the WICO's do.
If you use the 4-way actuator, it works great. The 8-way actuator is just larger, so that it will hit diagonals as well.
Then again, the one I have may not be the same one, but is sure looks like it...and it was advertised as a switchable 4-way and 8-way.
Hope this helps!