I just got my first hill bow. It's a big five 66" long. What brace heights do you all find best for your hill bows?

http://www.howardhilllongbowmen.com/

This is a web page that has lots of Howard Hill info on it that may be of benefit to you.

I set my 66-inch Big 5 at 6 3/4.  6 5/8 inches also works for me.

I used to own a 66" Big 5 and it also worked best around 6 5/8" brace height.

Craig would tell you 6 and 1/4 to 6 and 1/2. I prefer mine at 6 and 1/2.

I usally set my Hill's from 6&3/8" to 6&1/2" except my reverse handle Hill I set it at 7-7&1/4".But most of them I set at 6&1/2",I also cut my fletching from 5&1/2" down to 5".

I have 2 66" Hill bows and both shoot well at 6 5/8". Good luck with that bow.

Anywhere between 6 1/4 and 6 3/4 will work. My 66" bows seem to shoot best around 6 3/8 - 6 1/2. Start low and work high to find the sweet spot for your setup and shooting style.

Ken

The sweet spot for my 66inchers is between 6 1/4 to 6 3/8ths inches. I think those are fairly cookie cutter standard settings for a Hill bow of that length.

These suggestions definitely put you in the ball park, but you'll have to find your own best answer.  A clearly specific answer would only apply if all the bows were identical, tillered the same and shot from a machine.  How you draw, how you shoot, your form, etc... heck, probably even the arrow, make differences that add up.  

If you want to really worry about all of that, it can keep you up all night.   I just finished a longbow today - flatbow, actually - and made it a string tonight.  I set it up by the old fistmele method and will twist it up and do so again in the morning, to accomodate however much it stretches during the night.  That's the way it'll get shot till I get around to paper tuning it with a specific arrow.

thanks all, I think 6 1/2 is shooting pretty nice. I'm gonna stick with that.