sentences:  Former bassist Paul Gray said this was due to receiving lawsuits and to avoid harming other people, and that it was a "better move" for the longevity of the band.Along with the energetic and unpredictable performances, Slipknot often use elaborate stage setups that use pyrotechnics, elevated stage areas, hydraulic drum risers, and computer screens.Reviewing a Slipknot performance, Alistair Lawrence of "Kerrang!"