"Back in the Day" (1970's) My friends & I all shot aluminium arrows, fletched with vanes, out of our recurves!!!!! We all used the rubber Bear Weatherests and our arrows shot just fine out to 30yrds. (talking consistantly hitting a paper plate)
With todays arrows all being fletched cock feather up, they say you can shoot right off the shelf. I shot 3-D with a guy shooting vanes that way last year & couldn't see any problems with his arrow flight...
A Weatherest is about $4-$5... I'd say pick one up & try both ways!!!