Mars is A/B and lazyman is STB, correct?
SWIM read many different teks but never followed one single one.. He made a 'collage' and his own improvisations to fit his context.
Anyways, he did make a side-by-side A/B and STB, and he doesnt remember the exact numbers but they were not significantly different in yield nor purity. They were both around 0.9 - 1 %. SWIM had to start the A/B a couple of hours earlier, so yes STB was definitely faster.
SWIM never had dissapearing naphtha with his STBs, even with low proportions of water, but has indeed read about people having this problem.
An A/B is essential for many extractions, but for mimosa itself SWIM has till now been choosing STB because he can get pure white crystals and good yield by just working carefully, doing a sodium carbonate wash and one or two recrystalizations. The advantage of A/B is if one wants to defat a product, and also when mixing the solvent in the end, its easier/cleaner because one is dealing only with liquids because the solids were thrown away after the acid step...
I would say SWIY should try them both and see which one he preffers.
SWIM's next mission is to try his first limonene tek, which is is very anxious for, but the right moment hasnt come yet. He thinks the limonene tek will probably be his preffered one from now on.