If you can give me a few more specifics I can get it right on for you.If you have an arrow weight and speed that you now are shooting it will be more accurate.Or tell me exactly what kind of arrow and I can get the weight.Arrow length(shaft only),point weight,type fletching,4"or 5".Feathers or vanes.Chrono speed is better but not neccesary.
How long are your arrows,shaft only,no nocks or points.
Do you want to use a rope loop or off the string.
Measure from the string to the back of the grip at full draw,Mathews draw lengths are sometimes a little off.
What kind of speed are you looking for or are you looking for heavy,I would reccomend something in between,340-400 gr.
I like the nitro stingers and my program doesn't have them on it.Mine weigh 356gr and penetrate great.They also make heavy ones as well.
www.nitro-stinger.com