Solid core OFC vs stranded OCC copper

I braided 2 18ga, 3 20ga, 4 22 ga, solid core insulated copper wires for each positive and negative leg (9 ea) for about 12ft and it works well-enough (or it's the speakers). I've tried a few things, nothing expensive, and haven't wanted to change yet. But.

@sasho  I don't know to be honest as I've not done that with this wire. I tried parallel wiring before and didn't like it. 

thank you for replays

Well regarded Neotech NES 3002 2 x 9 AWG speaker cable got 19 solid cores per phase

Audioquest, Kimber also use multi solid core

Audioquest uses "true solid core" in a lot of their wires (but not everything).

Kimber uses "pseudo solid core" or almost solid core.  It actually a stranded conductor that uses only about 7 relatively thick strands per bundle.  It's still stranded, but better than most other stranded cables (which can compromise up to 30-40 tiny strands).

what do you recommend - join 8 x 20 AWG solid core strands to get 11 AWG, or join 5 x 18 AWG to get 11 AWG

@sasho - if you are using Neotech teflon coated, I would recommend 20 awg. The 18 awg can start to lose high frequency response/resolution.

However, the VH Audio UniCrystal™ OCC Copper Hookup Wire
with AirLok™ Insulation at 18 awg is superior to any of the Neotech stuff (due to the type of foamed Fluoropolymer insulation he uses. The VH Audio 18awg wire is more expensive at $6 / foot, but it’s better overall.