Hitech MK2 Aluminium Holder Wide Angle

Anyone used it?

I'm thinking of getting this for my Cokin P series, as this wide angle has 2 slots, not 1 like the P series wide angle holder.

Its about $80 though, far price difference for the major being 2 slots (and its aluminium compared to plastic, but not something that interests me).

Also for vignetting, if anyone has one, is the hole larger than the Cokin wide angle holder (I've some people have vignetting still at a 10mm)?