IL,
Within the weight range you listed KE level changes will be basically a non factor........KE level only rises slightly as arrow weight is increased due to the fact that a bow only has one efficiency level. If all else stays the same (string load, draw weight, draw length ) and only arrow weight changes, then KE level will stay very similar to levels attained with a lighter arrow. Most of my bows have shown an increase of only about 2-3ft lbs from a very light 350gr arrow to a more moderately heavy 470gr arrow.

That being considered you should probably just split the difference of the shaft style you listed and maybe look at something like a 2314 if it spines correctly for you...........I ran a few numbers on bowjackson to show you some arrow weights.

29" shaft w/ 100gr point/insert/ bushing Super nock/ 4" feathers

2213= 445gr
2314= 475grs
2315= 506grs

If you consider a typical speed gain of about 1fps for around every 3grs of arrow weight you' d pick up about 10fps with the 2314 vs the 2315 and not give up a whole lot of durability either.

Ever consider A/C/C' s? (still got aluminum in em' ) A/C/C 3-60 or a 3-71 sure pokes a nice hole and they' d gain you a bunch more speed and you would gain durability ! (Both would most likely be over 400grs finished.....)
Say ballpark 410grs for an A/C/C 3-60 at 29" ... that would give you a 30+ fps speed advantage over the 2315 with better durability.
Just thought I' d throw that out there.