been shooting my biscuit for 2 years with same arrows and feathers - some arrows over 200 shots - they are a bit rough on the edges but still work fine and fly fine.

as for not having a counter arguement - simple point is, if properly tuned and set up, they work excellent and the "proof" comes from the many that use them. those who haven't have nothing to "argue". those that have and didn't like them - sh*t happens and they are definitely not for everyone

I like mine