In most instances you are correct about not leaving a ball near your opponents pocket when there is an opportunity to remove it... however in this instance, the 10 is a ball that helps solidify the trap... with the cb left in the intended position
( on or very close to the 4/11 )
It would be very easy to kick in the 15 ball and escape the trap, however with the 10 being left in a very bankable position, that option is not viable...
Thanks for explaining your thinking about the shot
Learning how a champions mind thinks is priceless
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To learn from players who have been there and done that at a very high level
We are lucky you guys will shsre your knowledge and experience