David Allingham took early control of the Superstock action as he led the way in first practice this morning.
With a best lap of 1min 35.146s, the points leader ended the session 0.408secs clear of nearest rival Luke Mossey.
Lewis Rollo was third fastest with Ash Barnes fourth and Scott Swann fifth.
Pirelli National Superstock Championship, FP1 result:
1. David Allingham (SMS/Nicholl Oils BMW) 1min 35.146s
2. Luke Mossey (Milenco by Padgetts Motorcycles) +0.408s
3. Lewis Rollo (Motorrad Central Edinburgh by MLav Racing) +0.558s
4. Ash Barnes (Rapid Honda with Drivelife) +1.119s
5. Scott Swann (Swann Racing by SMR) +1.291s