I think you will find that freebase alkaloids are never as "full" or visionary or potent as just brewing the plants.
It took me a long time to figure this out, because I never saw any reason why there should be any difference, but it seems you lose something in the extraction process. Of course, it works a treat, I'm just saying, I always found brewed plants to be better.
DMT acetate is wonderful and even preferable for many reasons! Perfect for making Changa! :-)
Sometimes it will eventually dry into a hard material which can be smoked as pure freebase as well.
You might want to wash your d-limonene a few times before adding the vinegar and pulling the alkaloids out of the d-limonene!