As cruise experience has varied and occurs so infrequently in relation to playing BJ, I believe BOTH of these gentlemen can be right, though what I first experienced seems totally different than last experience. Apparently the cruise ships may have used to operate their own games years and years ago and now, "contract out" the service OR use one of the name casino operators to "manage". That makes a BIG difference on playable games v. ones that don't seem to be really worthwhile other than as a "pasttime" while traveling.
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