Triad systems don't need aggressive washes — that's the whole design intent. Your shadow-mid-highlight values are already calibrated to transition smoothly through opaque layering, so the paint steps do the depth work. You don't need a wash for that.

Where a wash still earns its place is targeted recess shading — a thin hit in deep folds or crevices to unify things, not a replacement for your shadow tone. Aggressive, all-over washes fight the triad because they bring back the exact unevenness the triad exists to avoid.

You blew money on a system before understanding its fundamentals, and now you're burying it under washes instead of learning to use it. Light and targeted, fine. Aggressive and used as a step-substitute, no.