John McGuinness again showed he is the man to beat at the Isle of Man TT by upping the pace in Superbike practice on Tuesday evening.
John McGuinness claimed three wins at last year's TT
The HM Plant rider, who has 11 previous TT wins, set a fastest lap speed of 128.49mph - over three miles an hour quicker than his lead time on Monday.
With the leading contenders all improving, Guy Martin (126.93) was second with Ian Lougher (126.23) third.
Bruce Anstey was fastest in both the Superstock and Supersport sessions.
Anstey's best lap of 125.34 aboard his Suzuki left him comfortably ahead of Dubliner Martin Finnegan (122.94) in the Superstock session.
For the second successive evening, Yamaha rider, Manxman Paul Hunt (121.69), was third fastest of the Superstock hopefuls while Suzuki rider Adrian Archibald (121.45) was fourth quickest.
New Zealander Anstey (121.33) topped the Supersport session ahead of Ryan Farquhar (120.44) and Ian Lougher (120.11).
Tuesday's Superbike practice times (mph)
1 J McGuinness (Honda) 128.49
2 G Martin (Honda) 126.93
3 I Lougher (Honda) 126.34
4 I Hutchinson (Honda) 126.26
5 M Finnegan (Honda) 124.57
6 A Archibald (Suzuki) 124.15
7 R Farquhar (Honda) 122.82
1 B Anstey (Suzuki) 125.34
2 M Finnegan (MV Agusta) 122.95
3 P Hunt (Yamaha) 121.69
4 A Archibald (Suzuki) 121.45
5 J McBride (Suzuki) 120.70
6 J McGuinness (Honda) 120.68
1 B Anstey (Yamaha) 121.33
2 R Farquhar (Kawasaki) 120.44
3 I Lougher (Honda) 120.11
4 I Hutchinson (Honda) and J McGuinness (Honda) 119.97
6 S Harris (Suzuki) 118.40)