Uckfield are neck and neck with the Sussex One leaders after a 32-0 derby win at Crowborough.
Flanker Tim Whittaker (two), Phil Andrews and Tim Rowlands scored tries with Nick Ridley's boot boosting the tally.
Horsham stay top on points difference after a 30-6 derby win at Pulborough.
They trailed 6-3 at the break having played up the slope but then ran in tries by Mike Thayre (2), Tim Wills, Paul Thurston and Jim Maskell. John Macfarlane added a conversion to his first half penalty.
Hastings are also right up with the pace. They won 23 -10 in a good contest at Seaford with Andy Hitch's late try making sure of the points.
Steve Pepper and Seb Halligan also went over, Paul Sandeman dropped a goal and Mark Patmore added a conversion and penalty.
Phil Joy crossed for Seaford with Simon Baker adding a conversion and penalty.
UC Chichester threw in 11 freshers against Newick and picked up a welcome 27-0 win while Hellingly's clash with Royal & Sun Alliance was postponed.
Old Brightonians top Sussex Two East after Gerald Bush's double strike helped them win 39-3 at Ditchling. There were also scores for Victor Heal, Steve Humphries, Tim Ellis and John Gorton with Mike Edmunds landing three penalties and a conversion.
Burgess Hill beat Plumpton 22-18 and Sussex Police were 47-3 victors against Robertsbridge.
Norfolk Arms had a 51-11 derby win at Shoreham in Two West with tries coming from man-of-the-match Ian White (2), James Barr (2), Mark Friend-James, Mark Randall, Ian Salomon and skipper Martin Newick.
Arun thrashed Midhurst 85-0. Tony Burn and Ted Morris were scorers in Wingspan's 17-0 win over Barns Green.
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