When should I switch to short-string?

[wildbill001]

My first born, er, bow.  Red-Oak board bow, pyramid-style/design.  67"ntn and am shooting for 35# @27".
Non-bending handle.

Got the shape roughed out and have started tillering with a long-string.  Am currently at limb thickness just under .5".  Currently pulling about 27# at 17" draw.  My question is when do I or when should I switch to a short-string?

BTW, will post pics later this evening.

TIA

Bill

[bigcountry]

When I get the tips moving 10" and limbs bending even.

[wildbill001]

10" from the relaxed vertical?  Just want to make sure.  Hate the break this before I shoot the first arrow.

Bill

[okie64]

If my limbs are bending even I switch to a short string when the limbs are bending to where they would be at brace height with the short string.

[bigcountry]

wild, have you floor tillered it yet?  If you floor tillered to get a nice bend, it shouldn't be the long string much at all.  Just to even stuff up some.  

10" isn't a hard rule, but I get the short braced string on as soon as I can brace it.  Which is usually 10" of movement.

[scrub-buster]

My "long string" is just long enough to get on the bow without bending the limbs.  Once I get the limbs bending a little, I keep shortening the string a little as I go.  Staying with the long string for too long can cause the bow to be under weight when finished.  Just my two cents worth.

[George Tsoukalas]

I long string tiller out to 10 inches of string movement. Looking for good limb bending and target weight. Then I string it. Info on my site.
 http://georgeandjoni.home.comcast.net/~georgeandjoni/

[wildbill001]

Here is a pic of the board before doing any shaping.  All I have done at this point is glue on a handle of canarywood.

 

Oh, and I rough-cut the fades

Here is a closer look at the fade(s)
 

Here is what the shape looks like from the bow back
 

[wildbill001]

Here is the tiller so far.  First, full frontal, 17" draw at 27#.  Staring at the picture, it looks like I'm developing/developed a bit of a hinge on the right limb, maybe?  About 8" from handle?
 

Closer look at the left limb.  Still a bit stiffer than the right.
 

And the right limb
 

It is currently 67" ntn.  Again, I'm aiming for 35# @ 27".  But seeing as this is my first, I'll be happy if it doesn't explode before I shoot the first arrow.

What's the verdict so far?

Bill

[George Tsoukalas]

Lots of run offs or run outs on that board. Be careful especially since you are using a tillering stick. I posted my site above. It has info on board choice. Jawge