Generally speaking, if you want less volume go for long layers. If you go for one-length but have dense hair you may end up with the "triangle-head" look. I used to have that problem when I had higher density. Now that my hair has thinned , I got it cut to shorter layers and it works MUCH better. My hair looks fuller now.
fine - normal porosity*?- medium density - normal elasticity. Hard water. SoCal.
*Used to be low-porosity, but I lightened my hair 1-2 shades, so I may be normal-porosity now.

New climate! Current favorites:
Low-poo: CJ Gentle Cleansing Shampoo, Giovanni SaS
RO: V05 Kiwi Lime
Styler: UFD CM (old formula), FSG + CNPF
PT: CJ Repair Me, IAgirl's gelatine

Experimenting with: JC Confident Coils, JC Rockin Ringlets, CJ CIAB, gelatin gel

iherb discount code: CFN646