I'd revisit my original question, which is not at all in opposition to the consensus here:

ARE YOU UNCOMFORTABLE DRAWING 70 POUNDS?

If you are, then don't crank it up. If not, then go ahead. All shooters are different, for some, 60lbs is the heaviest draw they can handle, for others, 90lbs might be.

I have no problem drawing or letting down a 70-80lb bow, even in competition setting where I'm shooting a LOT of pins. On the other hand, I have a buddy that can't even fully draw my 80lb bow. Finding 80lb bows on a shelf is hard to do, so I shoot 70lb bows most of the time, screwed in to max, then tuned from there. In pre-season, I've been shooting 100 pins a night, 4-5nights a week with a 73lb hard cam Destroyer. Nothing uncomfortable about it.

How much draw weight you are comfortable with is up to you. None of us live in your underwear...