Why a 1-5 scale instead of 0-100?
A 1-5 scale is routable in 5 distinct queues (score 5 to AE, score 4 to SDR fast, score 3 to SDR standard, score 2 and 1 to nurture). A 0-100 scale creates artificial precision ("score 73 vs score 74") that nobody acts on differently. The 5-band structure matches how teams actually route and the thresholds are easier to tune.