I got some carbon express terminators for 42 a dozen at walmart about half off. Right now I am shooting 62lb but will change to 70 since I am a new shooter. I have a 28" draw length. I bought the 4560 will they be ok if i move up to 70 lb. In cabelas it says go to the next one like 6070 but in a bow shooting magazine it says 4560 will shoot to 70. Anyone know about this? Also, what size broadhead would you recommend i shoot spitfires in my old crossbow and want to stay with them. Sorry if these are dumb questions I am new to the compound bow shooting. Thanks for the help guys.

http://www.carbonexpressarrows.com/s...de_chart.shtml try this site. Looks underspined at 70 for most setups HTH

What do you think that 4560 means??????? It means 45 to 60 lbs of draw--and generally at an average 29" draw. So being as you are 28" and shooting 62lbs you are at the upper edge of the spine range for them. At 70lbs you be way too light, and the result will probably be irratic arrow flight, especially with broadheads.