You have to decide based on everything. Here's everything — graded.
THE EDGE
C-grade Over 3.5 (first-5 total) — model vs market gap 6 points. A validated close edge is in play here. Umpire Alex Tosi (confirmed).
CONTEXT CHIPS — F5_TOTAL
VALIDATED INTERACTIONEDGEHeat × dry air: +10.1% (n=421) when true / -5.1% (n=193) when false — tonight: TRUE
STARTERS K% / BB%PRICEDBrandon Pfaadt 15.4/4.3 · Cam Schlittler 31.6/6.1
MARKET ANCHORPRICEDtonight's line 3.5 vs 5 typical at Chase Field this season
LINEUP K% (LAST 30)PRICEDhome 20.9 · away 24.5
CAUTIONS — WHAT CUTS AGAINST THIS
Retractable roof — reported closed before first pitch, entered by hand, not measured.
Season rates and workload are in the price. Spotter's edge here: validated interaction.