Lasswade turned on the style to see off Dalziel and extend their lead at the top of BT National Division Three.
The Hawthornden men were rarely troubled by the league strugglers, running in seven tries to secure a win and a bonus point.
Flanker Dougie Hearn and winger Ciaran Lamont each had a double and there was one try apiece for hooker Calum Sinclair, centre Blair Smith and replacement Andy Hall, with Lewis Clarke kicking one conversion, as Lasswade – whose wins on the previous two Saturdays had been by just one point and three points respectively – eased to a 37-0 success.
That result, combined with defeat for second-placed Dumfries Saints, leaves Lasswade with a five-point cushion at the top of the table with five matches to play.
The loss for Dumfries also played into the hands of third-placed Preston Lodge. The Pennypit men confirmed that their promotion bid is back on track following a recent damaging defeat against RHC Cougars when they added a bonus-point win over East Kilbride to victory over Dalziel the previous week.
Paul Glynn, Johnny Brash, Jason Riley, Scott Rodgers, Alex Jessop, Bruce Stoddart and Jonny Sked all crossed the whitewash and Graeme Patterson weighed in with four conversions for a 43-21 win that leaves Preston Lodge eight points adrift of Lasswade having played one game less than the pacesetters.
RHC remain on the periphery of the race to step up a division after an impressive 20-8 win over West of Scotland. Ross Thomson dotted down for the Capital side and teenage scrum half Charlie Shiel booted five penalties to secure a victory that has moved the Barnton men into fourth spot at the expense of their opponents.
Elsewhere, basement side Murrayfield Wanderers remain winless after suffering a 25-8 loss away to Dunfermline.
In Division Two, a snow clearing exercise by an army of volunteers ensured Livingston’s match against Musselburgh went ahead at Almond Park. However, it was the visitors who turned up the heat when the match kicked off, easing to a 92-0 win that leaves Musselburgh in second place in a tight promotion race.
The Stoneyhill men had the bonus point in the bag after only 20 minutes when Jason Watt touched down for the fourth try, and the lead had grown to 49-0 by half-time. The second period yielded seven more tries, with Alfonso Horomeia completing the rout when he bagged a late score.
Musselburgh trail leaders Hamilton Bulls by one point although they have played two more matches than the table toppers. The pair will clash at Stoneyhill on Saturday in a fixture that could be pivotal for the title race.
Meanwhile, Haddington found the going tough as they went down 56-5 at home to Aberdeenshire. There was frustration for both Stewart’s Melville and Watsonians whose Division One matches were postponed. However, StewMel’s promotion bid received a boost when GHA lost at Selkirk, leaving them two points clear of the Edinburgh side whom they will meet at Inverleith on Saturday.