Change the initial locking process for new questions.
Change the initial locking process for new questions to
A: Add a random 5 to 10 second delay where the question can be read but not locked.
B: Do server-side random assignment of a new question from a pool of all experts who have clicked on the lock link during an initial 5 to 10 second review period.
Both of these would give the experts time to review the new question and decide if they are truly capable of answering instead of clicking on it blindly just to have the opportunity of answering a question. They would be a countermeasure against experts using illegitimate means of repeatedly locking new questions.
Old questions hitting the question list would not be subject to this process. They would go to whoever clicks on the link first.