Vains and shafts
 

Can someone give me some info on the different vanes and shafts. Whats the differences in them. I know that the vanes are the fletching but whats the differencesin the two, three and four inches. and whats the differencesinthe shafts. Im wanting to buy some more carbon fiberarrows and im thinkingabout buying a fletching jig and just doing it myself.