On my system, I incorporate the mashout step with vourloff. You can use conversion time, wort clarity, lauter efficiency and total attenuation as benchmarks for wort quality. You can try shortening the conversion rest by a few minutes and see if the difference is noticeable. Over time, I've shortened my conversion rest by 15 minutes. I've also gone with no mashout and the beer hits the same benchmarks, except lautering is a little slower.