Hi, thanks for taking your time, and thanks for your help.
I'm afraid I'm not making myself clear about the issue. Using "no more often than 1 sec." will only triggger, if all my backs are matched. Because only the first bet at lay_price is matched, but my back at lay_price+l_tick and lay_price+l_tick+l_tick are not, "selections back unmatched" is still greater than zero... Using this condition trigger one will therefore not trigger?