Answers
One page per question, and the verdict in its first line
48 questions, one page each, with the answer in the opening sentence rather than after four paragraphs of preamble. Where the honest answer is that the published figure was taken at a pressure or on a lawn your garden will never reproduce, the page names those conditions and goes no further.
Choosing
Which power source suits the garden rather than the lawn size, when a drive is worth having, and what more money actually buys on this shelf.
Width & area
Deck width is a dimension of the housing and the square-metre figure beside it has no publisher at all. What each one is good for.
Battery & runtime
Why amp-hours cannot be compared across platforms, where the energy goes on a cordless mower, and which packs fit which machines.
Robot setup
Wire or no wire, pegged or buried, what a slope figure assumes, and what a garage actually protects.
Mowing & height
The one-third rule, what each height range does to a lawn, and why the first cut of the year takes two passes.
Mulch or collect
When clippings disappear and when they mat, what a mulching plug changes, and why a deck leaves clumps.
Blades
How a lawn tells you the blade is blunt, when the lift wing ends a blade regardless of its edge, and what has to match for a blade to fit.
Scarify & aerate
The spongy test and the puddle test, why the lawn looks wrecked afterwards, and which of the two machines you actually need.
Seeding & repair
Soil temperature over the calendar, the two sowing rates, and why seed that swelled and then dried is dead rather than dormant.
Feeding & moss
What spring and autumn feeds do differently, why moss keeps coming back, and how far iron-based products travel onto paving.
Watering
Deep and infrequent, the pressure a rotating sprinkler needs to turn at all, and what a water butt can and cannot drive.
Noise
The figure in the oval is a guarantee and not a loudness. Where the machine types sit, and what three decibels means.
Servicing
The fuel that was left in it, the pack that spent winter on charge, and the air filter nobody has looked at in three seasons.