If I understand your method it is
- two opposite centers (white+yellow, say)
- build 1x4x5 rouxblock on white
- remaining centers K4 style
- use freeslice to pair last white edge and two M edges so you can build a "double xcross" on white
- finish edges with 2-pairing
- Fridrich finish, I assume
I think it's an interesting variation on Yau/Meyer, and should be fun to play around with. Having to pair specific edges with freeslice seems a bit unusual to me but it's not particularly slow or anything. I wonder what times people would get. (e: It looks like this method is capable of at least 1:30 range times, like the ones it's similar to.)