Either me or my partner will definitely let the town know, no reason not to.
But with the number of innocents left compared to the leps our guess isn't any better than what Dawg rolls.
8 people left and Lucky seems to be going tonight pending a major breakthrough.
Scenario #1: Lucky is the last evil and shamrock turns an innocent, so probably the game would be done. Even if the game continues (which depends on the order of things) we know that the person turned HAS to be the last one left. Game over again as we outnumber the leps heavily.
Scenario #2: Lucky is innocent and shamrock turns innocent. We now have 2 leps and possibly lose 2 innocents that night. We would know that the person given it was an innocent turned evil because if they were evil in the first place and the shamrock was given to them the game would be over. However, that would be a waste of the shamrock and just give the last lep a chance to kill off more innocents, and we would still need to find the last one.
Scenario #3: Lucky is innocent and shamrock turns evil. Another ideal situation.
I think the best bet would be sure on Lucky so the shamrock doesn't even come into play.