Here is the starting material for my 2nd attempt at making bubble, it's about 28 grams of dried trim.
After hand stirring for 20 minutes.
1st pull of the 90 bag
1st pull of the 73 bag
1st pull of the 25 bag
Here are all 3 grades on cardboard; un-chopped and chopped
2nd pull of the 90 bag
2nd pull of the 73 bag
2nd pull of the 25 bag
This time I had a second five gallon bucket and ran the rinse water through the 25 bag and got this.
Here is the 2nd pull on the cardboard
and here are both pulls after drying and running through a tea strainer to powder the bubble and remove and hairs/lint that seems to end up in all my bubble.
The total yield from this round was 1.36 grams. On my first attempt I got about 3% return and 4.9% on this round.