so i have a mesmerist (Umbral Mesmerist archetype) and i plan on taking the Harrower prestige class and the Harrowed Summoning feat, and both Harrowed Summoning and the Harrower's Harrowed Casting ability add a Somatic component to modified spells (and spell-like abilities in the case of HS), but since mesmerists are psychic casters, they don't normally have somatic components, and instead have emotion components, so my question is: do the somatic components remain somatic, or do they become emotion components? and if so, are psychic casters subject to arcane spell failure?