I don't know much about carbons. Maybe someone can chime in and let ya know how they spine as compared to the 40-41# of the bow. It's been my experience that most proshops that don't know much about recurves will use the charts put out by Easton or other arrow manufacturers that cater to the compound crowd and the arrows end up being WAY overspined for the recurve. This will cause arrow flight problems and accuracy problems as compared to a properly spined arrow. Yep, feathers are what you want. The plastic vanes tend to fly rough coming off of the bow.

Have fun. Them cardboard boxes can be cantankerous. You might want to shoot dirt clods and dandylions instead. Just don't use field points. Get a few zwickey judo points and have at it.