It's only been a few years that the #30 string hasn't been available, it's really about all I’ve ever used since I started shooting turks in 2000 with my stick.
I much prefer the #30 over #17, but both will work.
The #30 is a more "bonded", less "flossy" feel. Hence seems to be more abrasion resistant...a good thing!
The #30 spools hold less footage obviously because it's a larger dia. line in the same size spool. So, in that category, the #17 wins but I doubt it would stay in tact for the whole spool unless very open country.
I've shot #30 out to 20yds. with no real diff. in where the arrow hits(I've always shot anywhere from 55-60#'s with good weight arrows)....but past that it will quickly the further you shoot.
All of the 30+ turkeys I've killed since 2000 have all been within 20yds., with most being under 10yds...small kill zone, means close up and personal shots!