I just started using Aubrey Organics Glycogen Protein Balancing condish and I love it. It has milk protein and glycoprotein in the ingredient list, but it's nicely moisturizing at the same time. It seems like a hefty dose of protein, so you could try rotating that as a rinse-out with the SM moisture retention.

If your hair likes some daily protein, you could try a new recipe and add some protein into your fsg recipe. I'm pretty sure I've seen some recipes out there that call for adding gelatin to fsg.
2b/c, high density
fine, medium porosity, normal elasticity
loves protein, hates polyquats
still searching for HGs