okay a little confused but I think I can help your friends out.
Emulsions are due to not enough lye in my understanding, or not hot enough, but I think it will be fine with the 35g's SWIY added. if not add more, or just heat the wine jug with hot water to help separate. Freeze precipitation in SWIM's experience has never worked, though he never really tried much. In order for this to work one needs a certain amount of DMT per ml of naphtha, and that is difficult to figure out, more hassle then wanted in SWIM's opinion.
Cloudy is good, SWIY probably will get precipitation with the amount of bark SWIY used, but if nothing is precipitating out of the naphtha put it in a pan to evap and be patient. This way you will know for show if there was DMT in that naphtha.
It does seem like the water must not have been basified the first time so with the first naphtha pull try reusing that and then freeze or evap.
good luck
damiana
PEACE