I bought all the material needed for Vovin's Tek. So I plan on using HCL/NaOH and Naphta. I'm also thinking about washing with Sodium Carbonate, do you think it is a good idea ?

I have a pound of MHRB but I'm gonna extract only 100g for my first time and I have a few questions : Do you know how much I should reduce my acid soup (I'm thinking about 300ML so it will fit in my separatory funnel) ? And how low should my PH be when extracting MHRB (what about 3? I read it should be in the 2-4 range but I wonder what the optimum is) ? Can I boil my MHRB when extracting and reducing (opinions seem to be contradictory here) ? Should I still add some NaOH when the solution turns black to reach a PH of 13-14 or is it useless ? And more important, how much naphta should I use for my pulls (I'm thinking about 3x30ml) and should I shake the separatory funnel or only turn it end over end as vovin advises ? Also should the naphta be warmer than the basic solution or can I warm both in a heat bath before pulling ?

Thanks!