[blml] Announce or alert?

[Guthrie]

[Eric Landau]
Then there's strategy [D] ([A']?), which works best if you take a
moment to peruse your opponents' CC before the round starts:  Ask
when you don't already know the answer.

Good players use the disclosure procedures, including asking
questions, in order to follow their opponents' auction and build a
picture of the opponents' hands based on their bidding.  They do this
whether or not they are considering entering the auction.  This
conveys no intrinsic UI despite falling to the category of
"'sometimes' ask".

[nige1]
Good point Eric! Jerry's and Eric's strategy is fine provided that
[A] You carefully check opponents' system card
[B] You believe that the card omits no significant details.

That you can rely on this with such confidence is a tribute to the 
orthogonal layout of the American system card and the calligraphy and 
accuracy of American players.

I'm ashamed to confess, that in this country, players are less 
assiduous about completing system cards, so that further elucidation 
is almost always needed.