Pretty sure it's the Beco Gemini that faces forward.

Otherwise the Butterfly also has an insert part so it is supposed to be much easier to get bub on back.
I have a half buckle and i really struggle to do back carries, i think it's my boobs that are the problem though.
The chest strap ends up being too high and uncomfortable on the Ergo and the MT straps on the BB just I dunno, not too comfy.
I had no hope with a wrap, couldn't get the seat right, y'know, the integral part of safety?

Im really liking my RS but wish there was someone i could have come help me out.
I am guessing it will get easier to adjust the rails as the wrap wears in.