Missed weight

[Kopper1013]

Hey guys just finished my first bow!!! Had a blast learned a lot thanks to you guys.
So as I shot it tonight I noticed it felt real light and was dogging the arrows, slow enough to where I wouldn't hunt whitetails with it. Needless to say I was a little disappointed. So I took it in side and put it on the scale and realized I'm roughly 12lbs under where I wanted to be.
How much should I pike the limbs to try and gain my 12lbs back? And is 12lbs gonna give me a huge difference in arrow speed? Thanks guys for all your help will post pics after I pike/finish.

[Pat B]

Weren't you checking the weight as you tillered the bow?   Will you post pics, braced, unbraced and full draw?

[Kopper1013]

Pat I really didn't do much tillering it's a glass bow and everyone said you don't really have to tiller glass, so I didn't haha
I would post pics bud haven't quite figured out photo bucket
My problem was everything slipped during glue up so automatically I went from 1.5" to 1.25" also I was going for a 64" ntn but the guys said I should start with a 66 ntn cause they thought my stack was to thick possibly, so 66 is where she sits now.

[macbow]

Being a glass bow and if your draw is 28 inches or less I'd suggest cutting off 2 inches from each end and see what you get.
Won't be 12 pounds but should better.
If your draw is less than 28 might be able to go farther.

[KenH]

Cutting an inch off each end should net you ~5 lbs weight gain; 2" each end ~10 lbs.  If it were me, I'd take 2" off each end and use a bastard string to check the new draw weight before cutting nocks.

[Crooked Stic]

It is going to depend on what the bow weight is now--lighter bows will gain less per inch than than heavier ones. I think the 5 lb. rule might be for a bow already in the 50 lb. range.

[snapper1d]

Use this formula it will get you real close to your desired weight.

 EXAMPLE:
The bow is 68" long,45 lb.@ 28",you want 55 lb @ 28"
 
 55lb divided by 45 lb = 1.22(1.22%)
 Lose the 1 (100%)
 0.22 divided by 5 = 0.044
 0.044 x 68" = 2.99"
 2.99" divided by 2 = 1.495
 So take 1.495" (almost 1 1/2") off each end.

 To find out what a given reduction in length will produce:
 EXAMPLE: The bow is 68" long,45 lb. @ 28",you only want to take of 2" (1"
 off each end)
Take off  2" for a 66"bow
                                                                                       Short Way
 1" x 2 = 2"                                                                      66" = 1.145 x lbs
 2" divided by 68" =0.029                                              64" = 1.295 x lbs
 0.029 x 5 = 0.145 (14.5%)                                           62" =  1.440 x lbs
 Add 1 (100%) for 1.145 (114.5%)                               60" = 1.590 x lbs
 1.145 x 45 lb =51.525 lb (just over 51 1/2 lb)

Take off 4 " for a 64" bow              

4" divided by 68" =.059
.059 x 5 = .295
Add 1 for 1.295
1.295 x 45lb = 58.275

Take of 6" for a 62" bow

6" divided by 68" = .088
.088 x 5 = .44
Add 1 for 1.44
1.44 x 45lb = 64.8

Take of 8" for a 60" bow

8" divided by 68" = .118
.118 x 5 = .59
Add 1 for 1.59
1.59 x 45lb = 71.55

[snapper1d]

A piece of 1/8" braided nylon will make a good starter string.Dont use the twisted nylon will stretch real bad.

[JamesV]

You could laminate another .030 glass on the belly side and pick up about #15.