He used FASI for the salting.
So he takes the FB and redissolves in IPA and THEN add FASI and let re-X? This process reverts FB back to fumarate?
He took the DMT-Saturated Limo, added FASI (slowly and over the course of days - and in total, close to 50mL), and noticed the crystallization at the bottom of the jar in a day or so (the crystallization itself was not all white. Basically, the deeper into the jar, the darker the fumarate crystals were).
Upon retrieval of the fumarates from the jar, the fumarate crystals came out as large chunks of Orange colored crystal beds. This is where the first thoughts of "this will probably not end well" came up. Further reading in the Wiki persuaded him to take the orange clumps (now dry) and dissolve them in SEPARATE containers of ~20mL of water in an attempt to separate the Limo from the fumarate. As the crystal chunks dissolved, the 20mL water solution became off-white and foggy.
At this point, evaporation was initiated. Much impurities floated to the surface of the water during this step and were promptly removed. NOTE: He did NOT let the water completely evaporate. Instead, after about 2 hours of evaporation (read: fan and heat) he decided to combine all watery-DMT fumarate solution into one container, and immediately add Sodium Carbonate saturated solution. Much clouding was observed - milky opaque solution was formed, so he was hopeful that white crystals would be the end result. He let this soln sit in the fridge for close to 4 days.
He observed beautiful large, white crystals forming on the surface of this milky solution. Good. As he decanted the solution however, the crystals at the bottom of this container were grossly brown. And here he is wondering where he went wrong. Alas, he will try redissolving in IPA and re-fumarating..