trever, looking at your bow and shooting data, i'll offer an opinion on arrow choice.
imo - it's best to choose carbon shafts that are lower in spine than the manufacturer charts suggest, and piling on front end weight will make arrows track better/faster, without perceived weakening of spine.
matching arrows to bows means also matching the bow and arrow to the shooter. this is often overlooked, and no charts or formulas will help there except you doing the trialing and testing and 'seat of the pants flying'.
stay as close to 10gpp as possible. a heavier arrow will yield a better and more complete transfer of limb energy to the arrow. 10gpp equates to a 480gr arrow, but a 500gr arrow (or more) would probably be better. 20-30 grains more won't make that much shooting difference.
here's an example arrow build that uses inexpensive beman ics bowhunter 500 shafts (these are the same shafts i use, cut to 29"-29.5", out of my 48-55# bows).
the above image is a capture from my 'arrow building' spreadsheet.
the first line indicates a 255gr weight total for a 29" beman ics bowhunter, with the supplied alum insert and nock, and four 4" 4-fletch banana low profile feathers.
i'm using a 125gr steel adapter (cheaper than 100 grain brass inserts) epoxied to a 125gr point (field, judo, broadhead, blunt, whatever) for a total point weight of 250grs.
the total arrow weight is about 505grs, with some pretty high foc, as you can see.
hope some of this helps rather than confuses.