Last ranked period I played Acol to the Ace rank with almost no problems. Today, I had five losses against the expert. That did not happen before. Usually, I am well above 20 points, often winning. All Acol problems could be completely my errors. But I have to give up this system to protect my temper. In the hand above, the error is easy to spot if you look at the description. But Lia does not play Texas transfers after 1NT, so I thought 4 ♥ would still be natural. However, it is interpreted as "shortness in spades", and 3-5 cards in all other suits. When I saw Lia bidding a "fit in clubs" with 4♠ and a slam trial, I gave up. The second hand brought us to a 4-3 major fit where you make just as many tricks as in NT. Indeed, 3♠ is explained as 3+ spades. The idea is to show a preferred spot to play and missing a stopper somewhere. Lia would have bid 3NT. I went down twice after a small spade lead. The expert played one down in 5 ♦ . Lia would reach the impossible...