Not sure I understand how much you are supposed to "autosmooth" a certain mesh? You are using 30d, 35d or even 75d but I haven´t been able to discern any pattern to this. Can you please elaborate?
EDIT: Went around and saw your "Normal map modelling course", so that´s gonna come in handy. However still not clear on the amount of smoothing. 30d vs 180d for example.
Thank you! Just to be clear when selecting/marking sharp edges, the number when selecting should be the very same as the auto-smooth angle?