Partner had one ace, fit, a few spades and some soft values and optimistically assumed 2 key-cards and a ♠ void for my 5♥ bid. RHO had AKQxxxxxx (9 spades) and Ax in hearts and pessimistically assumed 3 key-cards and a ♠ void for our combined 6♥ bid ...
Thank you for your feed-back. In case you are wondering they do have 3 Aces but cannot make 6♠. Leading the J♠ results in -2 as the dummy is singleton in both majors.
I like OS very much and still play some simplified version of it mostly to avoid disasters due to forgetfulness.
If you are disciplined with the Intermediate Jump Overcalls they are particularly effective as your side know where it is, while the opponents feel robbed and tend to overbid.
Could someone please give an example of a hand where one should bid differently if RHO is known not have a 4441 pattern as opposed to a hand where RHO might have 4441 pattern (systemically of course)?