Here is the OSR 410 Sprint setup version 2 for Knoxville Raceway 2018 Season 3. This setup feels a little looser than version 1.
iRacing 410 Sprint Setups for Knoxville Raceway
Knoxville Raceway 183 iRacing 410 Sprint Setup v.1 by OSR
Here is the OSR 410 Sprint setup version 1 for Knoxville Raceway 2018 Season 3. This setup is a little tighter than version 2 and feels more stable to me.
Knoxville Raceway 182 iRacing 410 Sprint Setup for 65% Track Usage by OSR
Here is the OSR 410 Sprint setup for Knoxville Raceway 2018 Season 2 with the track usage around 65%.