I don't recall WHMs complaining much about SCH in ARR, seeing how they worked so well together back then. The most complaints I saw were whms complaining about being 'nerfed' in 2.1 (it wasn't a big nerf), funny they undid the main change of that patch now in 5.0 by turning MedII back into a 100pot/15s instead of 50pot/30s.