I shoot a bunch of bows that are 50@ 27 using heritage 150's and my arrows are usually dead on or close with a 100gr insert and 125gr head or regular insert and 200gr points.. your arrows kicking right with me would mean stiff shaft but maybe where its cut past center its or your release its different not sure.
whats your string is it skinny or normal because with skinny strings I have to jump to heritage 250's its a huge difference in spine I'm actually fazing out all the skinny strings on my bows because spine wise they are all too fussy,,,,, but make sure your nocks arent too tight also and be sure your release is smooth and of course your draw length is perfect,, start over with light points and keep going heavier even if you have to use washers behind field points to keep bringing up the point weight just to figure out what it wants to shoot.
edit; when I shot 2016's my other option for a faster arrow was 2114's,,, but hunting wise I highly recommnend 2016's its a thicker wall and skinnier shaft,,,,, the 2114's won me alot of trophys but boy they were fragile shafts.