OK - you edited while I was replying.
You believe that if you had kept the suited A-10, then you would have hit the royal because the suited J-Q-K were drawn.
You don't believe that the time that it would have taken to hold the 10 would have affected your draw, you think that's nonsense.
That's what you meant by "nonsense about when to play".
Not trying to be unreasonable here, just trying to understand, the way you wrote it was not clear to me.