Well I would lean towards the Edge myself... my buddy has the Yak with a bunch of the lightening mods including holes drilled in the rudder etc. and it's still pretty heavy. The big thick wing with the huge opening in the cowl doesnt help much either Needless to say with a Brison 3.2 it's a dog. His WH Edge weighed almost the same and just flew better and had more power out of a hover.

just my 2 cents