Arthur, I' ll give you an example of when you have to hold for a minute or more sometimes.

Elk hunting and a bull is coming in. You draw your bow just as he is walking behind a tree or bush at 25 yards so you can take an easy shot just as he steps out. Well he doesn' t want to cooperate and decides to have a look around before continuing on his path. You have no shot and can' t let down the bow because the only thing visible on the elk is his head and neck and he would surely see you if you twiched. You have two options. #1 keep holding at full draw hoping that he will take just one step or #2 let down and say by by to that big 6X6.

The very same thing happens with whitetails also.

I am glad that I have a very light bow with 80% let off just for this reason.

The differance between a 65% and 80% bow at 70 pound draw weight is 10 pounds. How long can you hold 14 pounds verses 24 pounds?

There are trade offs to take into consideration but for me a high let off bow works better.