EFOC + TOTAL ARROW WEIGHT

[EIGHTWGT]

I wanted to start a thread regarding EFOC and arrow weight.I am immersed in reading all the Ashby threads and it brings up a major question that I am sure many trad guys - both 'green horns' and 'old salts' would like to see 'in print'

With an arrow set up as per all the Dr Ashby findings regarding EFOC , fletching, broadhead where is the 'point of diminishing return' as related to arrow weight VS arrow speed ?  I ask this because I shoot a 42-43 lb R/D longbow I made with Dale Stahls help and Im ready to totally change my setup after all this reading yesterday and today..

I would really like to talk about this with everyone and see where this thread can go... I will be very glad to help in any way if needed...

Thank you all...

[Bjorn]

In order to get 20-30% EFOC you need a very light shaft that is super stiff-I shoot wood arrows and can't get that high without either weighing too much-like 1000 grains, or being totally out of spine-up to 85# already.
By using arrows with a long hardwood footing I have been able to get the weight that works for me, and really good bareshafting results; reduced fletching by 50% and get really good BH flight.
You have to play with this stuff, and your set up to achieve what works for you and what you can live with.

[trapperDave]

I have attained 36%efoc with 35/55 carbons, cut 28 inches w/ 100gr brass insert, 50 gr BH adapter, 122gr zwickey BH,and 2 5inch shield feathers.....total arrow weight=484 gr

[b.glass]

EIGHTWGT, I posted to you on the Ashby thread.

[ozy clint]

hey trapper dave, what bow poundage are you shooting? there's no way my 3555's would that much point weight out of my 54# recurve. trouble is my minimum arrow length is 30". 2" shorter like yours and it might work.