So I noticed with my avatar using FBT (or might be even without FBT) when I stretch my arms out fully in a T-Pose and then slowly start to move my arms forward towards my face (while still keeping them fully out stretched) that my avatar's spine like...tilts? forward? it just looks odd, it only happens when I stretch my arms out forward, otherwise the spine/chest area is tracking correctly with no issues.

Does this mean that my avatar's arms are just too short? I could try making them longer if this is the case