thanks for the feedback
i agree on hitting the break fairly softly to keep balls down at one end, but i did find you have a risk of 2 object balls ending up almost touching
would you suggest underspin or overspin on break? i'm thinking overspin, although i was doing underspin or square.... i think overspin as it gives more opportunity for your object balls to scatter without moving too far.
gonna go to a pool hall and try this myself. i'm nowhere near as good as one responder. i will be happy with 3 out of 10 success rate.