JonnyQuest, on 2012-November-27, 07:44, said:
If you choose double (too strong for an overcall), what is the upper limit of your overcall strength?
I am not sure what the question really means.
If is specifically asking those who would double with this exact hand (because they think it is too strong for an overcall) how weaker they would be with this 45xx shape to not double, but call something else, I don't think we have heard an answer. I would have thought that anyone who would double with this hand would also double with a weaker hand of this shape if they were too strong to pass.
If it is just asking "on this hand do you double or bid hearts", then that has been answered by a 2 to 1 majority.
If it is asking "forget this hand, but what is the boundary line between an immediate overcall and doubling followed by a bid", then a typical 18+ seems to be the boundary, or a useful 17.