That would be trading risk for gain. Remember, if you pick a correct letter you will not loose any guesses, in other words you get another guess if your guess

That would be trading risk for gain. Remember, if you pick a correct letter you will not loose any guesses, in other words you get another guess if your guess is right. It's not about finding the word in a fixed number of guesses. But otherwise you could also extend your method to increase the weight of letters appearing more than once in a word since that gives even more information gain.