David Allingham emerged fastest of the day despite being beaten to the top spot in FP2 by Lewis Rollo.
Rollo ended this afternoon’s session on top with a 1min 35.146sec lap – but it was still 0.281secs down on the 1min 35.146sec lap set by points leader Allingham in FP1.
Luke Mossey was third quickest with Scott Swan fourth and Declan Connell fifth.
Pirelli National Superstock Championship, Combined practice:
1. David Allingham (SMS/Nicholl Oils BMW) 1min 35.146s
2. Lewis Rollo (Motorrad Central Edinburgh by MLav Racing) +0.281s
3. Luke Mossey (Milenco by Padgetts Motorcycles) +0.408s
4. Scott Swann (Swann Racing by SMR) +0.422s
5. Declan Connell (Rapid Honda with Drivelife) +1.080s