Keep the test consistent
Use a similar patch of leaves and the same measurement interval for both samples.
Clean all the leaves Upgrade Decision Board
Compare upgrades from repeated before-and-after cleanup samples. No official ranking or hidden statistic is assumed.
Upgrade decision board for measured cleaning rates
Rank choices from your before-and-after cleaning-rate measurements. The board shows absolute gain, percentage gain, ordered rank, and optional affordability separately.
Your measured upgrade board
Test each choice over the same sample length. This board ranks observed percentage gain; it does not invent official tool stats or universal S/A/B tiers.
- #1 Next upgrade1.20 gain · 60.0%Save more
- #2 Current tool0.80 gain · 40.0%Affordable now
Formula: percentage gain = ((after rate − before rate) ÷ before rate) × 100. Cost is shown separately and does not change the measured efficiency rank.
Confidence improves when repeated samples produce a similar rate change.
Repeat uncertain results
A second sample helps distinguish a real improvement from route variation.
Record the date
An update may change observed behavior, so treat older measurements as historical.