Stu miller calculator suggests 80# spine should I get 75/80 or 80/85

[Ronal Ollis]

I came up with a 80 pound spine weight on stu millet chart for my suggested arrow spine.  I will be shooting Surewood shafts so do I get 75/80 or 80/85 spine really don't know?  Thanks

[Spectre]

What sort of bow do you shoot?

[CRS]

Without knowing all the details, I would err on the heavy side.  It's easier to decrease dynamic spine than increase it IMO.

[Spectre]

Originally posted by CRS:
Without knowing all the details, I would err on the heavy side.  It's easier to decrease dynamic spine than increase it IMO.

What he said.

 Whats your draw length? Whats your bow?

[Ronal Ollis]

It is a black widow pch.  57 pounds at 28 draw.  Shooting 160 grain snuffer broadheads

[Spectre]

Ok, I would go heavy as previously stated here--pretty heavy broadhead and a zippy bow.

[Shedrock]

I would go with the 80-85# spine.

[JEFF B]

yup go with the 80-85# spine  it always pays to go a little heavy than light.

[Lechwe]

I always have to go heavy with my widow and add weight up front to weaken if needed.

Good luck.

[CRS]

Centershot bow also.  80-85# is where you need to start.

I would leave the arrows a little longer too.  Cut them down if needed, for fine tuning.

[Bjorn]

It is always easier to tame a stiff woodie than the other way around.

[ishoot4thrills]

If you go with a weaker spine, you can always build out the side/strike plate to make the arrow act stiffer. That's what I do and it works for me.