DOPI/ROPI

Defense after opponents bid on 4NT (ace-asking).

DOPI
If your opponents bid a suit over 4NT:
Doubl: 0 or 4 aces 
Pass : 1 ace
1 step : 2 aces
2 step : 3 aces

(Those of you who use Key-Card bidders can change the
steps so they fit their usually answers.)

ROPI
Is used when your opponents double 4NT (what that is good for?)
Redoubl: 0 or 4 aces
Pass : 1 ace
1 step : 2 aces
2 step : 3 aces

(Those of you who use Key-Card bidders can change the
steps so they fit their usually answers.)