Lamont (2022a) presents a theory of quantity-insensitive footing within the framework of Harmonic Serialism (HS; Prince & Smolensky 1993/2004; McCarthy 2000, 2016), specifically focusing on CON, which consists of constraints evaluated in a directional manner (Eisner 2000, 2002; Lamont 2022b, 2022c). Unlike traditional approaches that consider the total number of violations, directional constraints in this theory harmonically order candidate structures based on the location of violations. By adopting directional evaluation, an important consequence arises: the constraint PARSE(σ) not only motivates iterative footing but also determines the specific positions where feet emerge. Consequently, the theory eliminates the need for alignment constraints (McCarthy & Prince 1993; McCarthy 2003; Hyde 2012, 2016) present in HS models that rely on counting loci to determine foot positions (Pruitt 2010, 2012). Compared to HS with counting constraints and parallel Optimality Theory (Prince & Smolensky 1993/2004) with directional constraints, this theory employs a smaller number of constraints, maintains empirical adequacy, and generates more precise predictions. To expand Lamont's theory's empirical adequacy, the present paper shows in the context of Budai Rukai's stress distribution that, by revising TROCHEE and IAMB, applying directional HS to the domain of quantity-sensitive footing is viable.