Disclosed are various embodiments for inhibiting or preventing automated data extraction from network pages. The rotor shaft is coupled to a helically shaped torsion member that is fixed with respect to a motor housing. A plurality of parallel portions are formed in parallel with the polish retainer in each sectorial region. The resulting net conversion, associated distillate yield and product qualities are greatly improved relative to treatment of the entire residue feedstock in a common ebullated-bed reactor system.