This section said truncating "breaks the one rounding the grid is for" and
left it at that, which is the same fault it withdraws the fused multiply-add
for: a claim nobody ran.
Run, it fails one exactness test by a step -- a share reaching 199.99902 of a
200px row -- and does not fail the warm-against-cold oracle any harder than
the head, which gives the same three failures on the same seeds within
0.002px. So the 57M cycles are not obviously bought with layout drift, and
whether a share stopping a thousandth of a pixel short is worth them is a
decision rather than a defect.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>