The only thing I've changed is I swapped out the BPE's for some JKS ones. I wanted to gain back some shock travel and the JKS ones mount closer to stock. I haven't had any issues at all, except for me not torquing some bolts tight enough.
Fox vs. Bilstein is a tough argument. They're completely different shocks. But I've been very happy with the Bilstein's and would get them again in a heartbeat.