i have 2 dozen poplar shafts that i ordered from 3 rivers.  I immediately noticed that they were much rougher than a cedar shaft on the outside surface.  I also noticed that they were not all straight, and the ones that weren't did not like to be straightened with pressure. My ace roller does a great job on cedars, but nothing to the poplar.  Any suggestions?  is this typical of poplar shafts?  I wanted them because they are supposed to be more durable and heavier than cedar, but if they aren't straight they aren't worth a dang!