EDIT: posted just after Theraze's reply
Running one clue then hunting for another does seem impractical, but I think Theraze is saying "What if you need more than that?" I mean, best case scenario, it'd take 3 clues and 4 fights to finish A-boo peak. It would make more sense to have enough clues first, but that's going to be very variable. If you're in SC, it'd be easy enough to pull what you need to survive. HC, your resources are limited. Honestly, +1 would make more sense. I mean, if you get your second clue after so many fights that you only need 2 to now finish it off, why hunt for a 3rd? For that matter, what if you get your third clue but it turns out you can only survive enough of the non-com that you'd need 4 clues?
3 is a very specific number that requires strategy, one that really does need to be re-evaluated WHEN you get each clue, not to mention luck (clue drops). Looking at the Black Forest, one of the goals is 1 black picnic basket. This is for the black pepper, which is only guaranteed after the 5th basket used in a day. It's not +1 because you only want to adventure until you have one, which you then would use to see if you got the black pepper, then hunt some more if not. The +1 for clues would make more sense because you want stop when you get another one to see if it's time. A carefully planned sequence would have you adventure a certain number of turns maximum OR when your next clue, which would effectively reduce the number of turns you must spend.
Let's say you can arrange it so each clue you use cuts 22% (4 successful, fifth beaten up). That's 88% with 4 clues, but that strategy would still save turns if you started using your 4 clues before hitting 68%. Once at 68%, using a fourth clue or getting in to a fight has the same effect, namely finishing off that last 2%. Then only 3 clues are needed until 46%, and so on. Because of this constant need to recheck your standing, it's best to consider it after getting each clue.
+1 would be a better goal since the number required is not 3. 98% is required. I mean, look at it from a Bad Moon scenario. Could you guarantee you could use 3 clues in 3 turns to clear the peak?