I just got involved useing them and was skeptical(spl)about the whole concept but I just spent afew hours today shooting them in my basement..(25yrs I have bow hunted with fletching and never thought there would be anything else)and cant find any fault except I had to buy my 1st dropaway and went with the T R Dropezone,I had my bow setup and shooting in little time.I am shooting Beman ICS 400 Hunters cut at 29" with 100gr field point.

Set-up.
Drenlin with 29" draw and 66lb draw weight,mech release....
After shooting thru thechrono with Beman's with 4" vains this was my FPS......256...average 5 arrows..
After putting FOB's on same arrow this is my FPS....259...average 5 arrows..
They fly streight and true and Icant tell or do not hear any noise differance between vains or FOB's.I shot 8 sets of 5 arrows with not one problem,tomorrow weather permitting(above 20deg) I will shoot 30,40,50yrds outside to see how they work at thos yrds....

Guys have shot thru mesh the only thing is your BH needs to be bigger then 1" witch means no Mech thru mesh with FOB's.I have not tried this yet.As of now I see no reason to go back to vains.

Try one you wont be sorry....but you need a dropaway.....