speed, or comfort ability
 

I currently have a 25 inch draw length, and am pulling 60# with a 354 grain arrow getting 250 fps. I shot 2 deer last year and got 2 pass through's with 75 grain muzzy 3 blade. However i did not hit any bone except a couple ribs. I was just wondering if i should crank my bow up to 70 pounds next year for the speed, or if i should leave it where it is comfortable and easy to pull.

Are you shaky or unstable when drawing a 70lb bow? If you have no problem drawing 70, then why not? Do you perceive that you can't handle 70lbs, or do you legitimately struggle with it?

Another big watch out to keep in mind when increasing your draw weight is your arrow spine. If you are shooting .400" spine shaft, you may see issues when you bump up to 70lbs unless you run a short shaft. Even a .330-330" shaft may not handle it well. I would assume since you are 25" draw and 75grn tips, you are running short arrows, but that may not be correct based on your arrow weight.

Question I have for you, unrelated: what is your calculated FOC with your 354grn arrows and those light 75grn Muzzy's?

stay comfortable

This..^^^^^^. Archery is not a weight lifting competition.

Look at your own experience. Pass throughs. That's all that's necessary.

If you cant draw your bow slowly and comfortably with minimal movement all the speed in the world wont help you. You will get a pass through as long as your not hitting shoulder blades. I shoot 55lbs and i have blown through a shoulder blade on the exit of a doe this year.

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...

Wasn't real sure what foc was at first, but after a little reading i calculated to about 11.5% with 354a grain arrows and 75 grain muzzy's. Does that sound right?

So you must be about 29.5" arrows? Keeping your broadhead a few inches in front of your riser?

FOC of 11.5% isn't bad at all. At first blush, instinct in me expected that a 350+ grn arrow with a 75grn tip would have less than 10% FOC. With a 29.5" shaft, I calculate you to be 355grn and FOC = 10.8% with HP2's, blazers, and H nocks in your bloodlines. Most sources will say to have an FOC between 7-15%, sometimes smaller ranges of 10-13%. I like about a 13% if possible for my desired combination (hard to do with lumenocks and wraps, and 250-300" shafts though without getting my arrow weight way over where I want them).

if it aint broke

Also keep in mind that when it is cold out and you have been sitting for a long time on stand, pulling back your bow after it is cranked up might screw with your shot. This of course can be mitigated by sufficient practice at the higher weight.

I actually have 27 1/2 inch arrows, which means i must have calculated wrong at some point. So you are right i probably have below 10% foc i will try and measure again and see what i come up with.