Actually they have a D3 Firenock that's supposed to work for the XR. I think it just came out recently and Jorge said to call him for that one.
There’s no warranty issue by not using aluminum nocks.Forgetting the hole warranty bs about aluminum nocks. Has anyone tried the D2 Firenock or tenpoint alpha nock on there Xr. Alpha’s should work, nxt’s have heavy limbs. I like Firenock because the extra assurance of the nock click on the serving.