• 7.5 baseline — 0.6 × season 7.1 (16 gm) + 0.4 × last 10 8.1
• −0.2 opponent leak — they concede 207.8/game vs a 213.6 league average
• −0.3 at this ground — averages 7.2 there (36 gm)
• vs them: averages 4.0 over 2 games — evidence, never summed

Most signals here point under while you're on the over — worth reading the working above before you commit.

Derived, not measured — plain arithmetic over his real games, shown in full. Adjustments can overlap (a game at this ground can also be a wet one); they add simply, and this note is the admission. Round 20: 14 — far outside his usual range; kept in the average, not smoothed away.