How a player chooses to hold or fold the bag is personal preference. Here are a few favorite folds of BAGGO tournament champions:
Hold the corner of the bag, let the filling/particulate drop to the bottom, fold in half and then fold in half again.
Smooth out the bag and toss underhand.
Half Paducah Pancake
Smooth out the bag, fold in half and toss underhand.
Hold the bag by a corner between two fingers and toss underhand.
Hold the bag in the middle of one side, let the filling/particulate drop to the bottom, and toss underhanded with the top of hand upright.
Gather the bag and toss!