I see what you are saying Fred and I agree that balls on the spot present added difficulties for a player trying to move balls out of play. I wonder though that by playing the rail first shot into the two balls in the upper right corner of the table don't you give up the cross on the three dropping the cue ball below the two again and sending the three to Efren's side of the table? Now if this happens and the view of the three is now block with the use of the two balls on the spot, what do you do?
There are not many good options for Buddy to choose from in this situation. The one thing you cannot do is allow Efren to get a ball on his side of the table which you can't remove effectively. (I dont care if he has a ball on his side as long as it is laying on the short rail.)
If you are worrying about Efren banking the 3, then putting you behind the two, not leaving a bank on the 2, or the 3, or the two balls on the spot, you definitely shouldnt be in this game in the first place. Is that supposed to be like a hanger? Those are exactly the kind of shots I want a guy who is way out in front to shoot at. If I wound up without a bank after he went for the 3 ball I would cut my throat, because I would feel like I was cursed. When my oppo needs one, I want him shooting at 3,4,or 5 to 1 shots, those are the ones that lead to mistakes.