nige1, on 2016-September-02, 20:10, said:
What exactly is "Standard Acol"? The term Acol is used to describe all kinds of natural systems. In the system we used to teach in Holland, which also was called Acol, you need 10+ HCP to response at the 2-level and a reverse response is GF. To me, the auction looks completely in accordance with the hand and I wouldn't dream of alerting. It's quite different if it went 1♣-1♠-1NT-2♦. That would show a hand with 5♠ and 4+♦. It's also different if Walsh or Montreal relays are part of your system, but then alerting is necessary.