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

Ronal Ollis · February 10, 2011, 09:44:00 PM

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 · February 10, 2011, 09:44:00 PM

What sort of bow do you shoot?

CRS · February 10, 2011, 10:35:00 PM

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

Spectre · February 10, 2011, 10:44:00 PM

QuoteOriginally 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 · February 11, 2011, 12:06:00 AM

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

Spectre · February 11, 2011, 12:09:00 AM

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

Shedrock · February 11, 2011, 01:33:00 AM

I would go with the 80-85# spine.

JEFF B · February 11, 2011, 01:41:00 AM

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

Lechwe · February 11, 2011, 09:10:00 AM

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

Good luck.

CRS · February 11, 2011, 10:40:00 AM

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 · February 11, 2011, 04:28:00 PM

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

ishoot4thrills · February 11, 2011, 08:28:00 PM

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.