For some reason, the back of my hair (at the nape of my neck) tangles so easily, even without product in it, and I don't know what to do! It's usually worse on non-shampoo days but lately it seems like no matter what I get a tangled, knotty mess back there. My hair is a few inches below my shoulders, 3a/b, well-moisturized and cared for. I only use 2 styling products (GVP Potion 9 and Alterna Hemp Texturizing Glaze), and condition with GVP Balm. I recently tried Paul Mitchell's The Detangler but it didn't work either. Does anyone have any tips, tricks, suggestions?

Sugaree curls
mid-length type 3a/b, normal to fine, normal porosity, color-treated, living in a low humidity climate.
Shampoo: Redken All Soft once or twice a week
Conditioner: Redken All Soft, GVP Conditioning Balm on shampoo days.
Leave-in: GVP Potion 9 and Alterna Hemp Leave-in (HG's!), CK.
Styling: Alterna Hemp Texturizing Glaze (HG!), Catwalk Root Booster, Paul Mitchell Volumizing Foam, ICON Mesh.
My Devafuser is my hair's secret weapon for looking fabulous!