You did this? Or you're planning to?
The main tip would be to include a defat on the acidic brews using shellite, before you go on to adding base.
After you've collected the pulls from the basic mixture, freeze precipitation will probably yield goo. You can put this through a mini A/B which should be self-explanatory from the name - dissolve goo in dilute acid, filter if necessary, add base and do pulls as before.
Goo is still useful, it just needs handling a bit differently, e.g. changa or enhanced leaf.