RULES ARE RULES
Bridge is not an exact science, and the area that this is clearest is on opening lead, where you have less information than anywhere else, as you haven’t yet seen another hand, and may have to rely on trusting the auction of LHO RHO and CHO (partner). That is why the books make up lists of suit combinations to lead from; but in real life you only get those once or twice as set when on lead. You have to make the best of it, without much to help you. Still, I do have some tips when in doubt and this set deals with some random pieces of advice when on lead.