What is your opening lead with the West hand?
If you decide that declarer is, perhaps, 5-5-1-2 and that the A is unlikely to go away, you may give some thought to protecting your pretty Q. Old pros are likely to be suspicious of an ace lead missing the trump queen and may sniff it out. They may also be looking for some points for that vulnerable overcall.
You therefore may decide to throw a smoke screen over the position of the Q (if your partner has it). Also, if declarer has it, it could be a singleton.
You may then lead the K? If so, your prayers are not excatly have answered when dummy hits the table.
The only way to keep your side in the ball game is to lead a quiet A.
Bridge Today, Nov-Dec 1993, p. 33 Barnet Shenkin