Bubbly Blackbird leads the field on composite score (43) and average performance (43), and crucially sits in T3 — the most productive trap at Romford 400m with a 27.8% win strike rate from 4,509 historical runs. That 3-4% edge over T1, T2 and T4 is not trivial over a meaningful sample. The speed rating of 56 is the joint highest in the field, and the pace profile of All-Rounder (early pace 51, CSR 53) is precisely what suits Romford: enough early foot to hold position into the first bend, with the stamina to maintain momentum through the tight turns. The class suitability score of 27 is modest, but trap suitability of 48 is the highest in the race, and at grade level staying (class=same) there is no upward pressure on this performance. As composite rank 1 in this field, the ML dataset shows such runners win at 21.67% across all conditions. Trainer P W Young at 16% is awareness level only, but the metrics here are strong enough to justify selection without trainer uplift.