I've been reading these comments. I'll add my two cents in here.
The 2114 is stronger in spine than a 2016. Just look at the old Easton "shaft" chart. A 2016 will always be one column weaker than the column containing the 2114.
Yes, the 2016 weighs 10.6 GPI (grains per inch) whereas the 2114 weighs 9.9 GPI (grains per inch). But, the 2114 is stiffer in spine (.510) than the 2016 with a spine of (.531). This means more point weight will be at the tip of the 2114 than the point weight on the tip of a 2016 with both arrows being cut the same length. In essence, both the 2016 and the 2114 should be very close in overall arrow weight, but the real difference will be in the point weights of the two arrows.
If I had to choose between the three sizes; 2016, 2114 and 2018 since these choices have been mentioned for a 50# @ 28" bow, I'd pick the 2114.
Speaking just for myself again with a 50# @ 28# bow; for a fast arrow, I'd pick a 2114 and for a slower, but heavier arrow, 2213 since the 2213 with it's large 22/64" diameter, will have more point weight at the tip than a 2114.