Did you filter after you baked?
So now are you going to add 2% BA back to the mixture, as you baked it out.
Baking is a waste, why don't you guys just get a beaker:
Fill with BA then powder than BB over a bath of heated water:
Bath of water can be as simple as:
OR more sophisticated:
Stirring every few minutes all powder should desolve around 120f, take up to but no higher than 140f and keep between 120-140f for 20 min. Then add GS (or what ever oil) and keep between 120-140f for another 20 min. Reduce heat and bring to about 110f and filter at between 100-110f.
If you don't bottle it all, when taking it out from storage make sure you bring your mixture up to 120 and shake/stir very well, then begin to fill vials.