I played in the AoIA event on friday with a local player named Shaw. He planned on using a 4 Y squad with 4 R5's. I told him that I was looking at a similar list and (since we were the only players who arrived for the tournament) I decided to give him pointers with how my Y list would have been had I brought it. I would not use 4 R5's but use R3-A2 and load the other Y's with Flechettes. Shaw liked the ideas and went with it and won our engagement with it.
He went to the Kobold's Corner in Kanata on Saturday and placed well (not sure how well but will have to ask him next time I see him) and he is was 2-0 in a 3rd tournament today with the same build.
The Shaw-Y build:
Gold with ion turret and R3-A2
Gold with ion turret and Flechette Torpedoes x 3
This list locks up opponents and walks them off the board very consistently. It also gives an alpha punch to the Y's that has a good side benefit of causing stress to weak hulled targets. It has lost one ship in most engagements but only one of the games it was played in did it come down to one Gold and a damaged B.H.
Y's are now a real threat in the meta.