[Zelandakh]

 barmar, on 2017-August-09, 09:59, said:

You can play whatever you like, just don't call it "stolen bid double" if it doesn't mean "double has the meaning that RHO's bid would have had if you had made it yourself".

Such as double for Stayman after a natural 2♣ overcall? That is clearly a crazy idea...

[barmar]

 Zelandakh, on 2017-August-09, 13:58, said:

Such as double for Stayman after a natural 2♣ overcall? That is clearly a crazy idea...

That's a common agreement even for those who don't play stolen bid doubles more generally.

But I've also had the agreement with some that it's only Stayman if the 2♣ bid is artificial, because they don't want to give people free license to step into their NT auctions.

[Zelandakh]

 barmar, on 2017-August-10, 10:33, said:

But I've also had the agreement with some that it's only Stayman if the 2♣ bid is artificial, because they don't want to give people free license to step into their NT auctions.

Playing X as clubs when they show clubs and Stayman when they show the majors (Landy) might get on the short list for the worst conventions in bridge!

[barmar]

 Zelandakh, on 2017-August-10, 14:56, said:

Playing X as clubs when they show clubs and Stayman when they show the majors (Landy) might get on the short list for the worst conventions in bridge!

Good point. But unless you've made an explicit agreement otherwise, default agreements apply. I don't think I've discussed defense to Landy explicitly with anyone. On practically all my CCs, it just says "Systems on over double and 2♣", and the default agreement is that over 2♣ double means Stayman.