Sugar leaf and small popcorn buds are worth keeping rather than binning, since a basic press turns them into rosin with no solvents involved. Yields from trim run lower than from flower, usually well under ten percent, and the post harvest notes on https://kushindicaseeds.com (https://kushindicaseeds.com) give rough expectations by material type. Resin heavy indica trim performs better than most. Fresh frozen material handled properly gives noticeably cleaner results than dried offcuts.