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Strength of Rosenkranz Double and Redoubles When Using C/1MX, Rubens Advances, Etc.

A hand from yesterday evening got me wondering about whether pards and I are using Rosenkranz doubles and redoubles to best advantage within context of the rest of our sytem.

I overcalled 1 with a maximum 1 overcall but with a basically A empty suit, lefty doubled, and pard redoubled.  For us, that shows A or K with either doubleton or three and single raise strength.  I was left not knowing whether pard had three card support and not knowing whether pard had a good single raise or a bad one.  I *would* have known pard's strength if he'd made a non-Rosenkranz raise, because we play a flavor of Rubens-like advances. 2 would have been a weak raise and 2 a constructive single raise. If I'd known he was weak, we could have stopped in 2, but we wound up too high in 3. (Perhaps I should have let it go after I cued 2 and pard bid 2, but I don't think that's really the answer to my question.)

My question is the following. Where is it better to have the ambiguity: in the strength of the Rosenkranz action or in the honor holding of the good raise?  We're more likely to be defending when weak, so there's something to be said for the lead direction of the Rosenkranz action on weak hands, but I'm not sure I'd want to restrict it to weak hands.  We might still be defending after a constructive raise, and the honor may be important for assessing game prospects.  Thoughts and practices on this?

 PS - Yes, I know many like Snapdragon better, but we're not so interested in going there.  Please just assume we'll be using some variation on Rosenkranz.

PPS - The four card raises are of course all handled with other bids.

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