Cambuslang Rangers maintained their four-point lead at the top of West of Scotland League Conference B with a thumping win over 10-man Newmains United.
The Somervell Park side racked up their 15th win of the season after a John Gemmell double plus efforts from Scott Anson and Jay Nelson delivered a comfortable victory, following Dominic Cherrie's early red card for the visitors.
Second-place St Cadoc's came from behind to beat Ardeer Thistle and stay in touch with Camby at the summit after they enjoyed another routine victory.
They have now won five on the bounce in all competitions after their shock defeat to Port Glasgow at the start of October.
Gemmell missed a golden chance to give the hosts the lead in the fourth minute when Nelson swung in a corner from the right, but the big striker - who netted his 90th goal at this level last week - headed inches over the bar as he burst into the six-yard box unmarked.
United - who lost 11-0 to Thorniewood last week - knew they were in for a long afternoon when they were reduced to 10 men after seven minutes.
Goalkeeper Andy Wilson's huge punt picked out Williamson and just as he honed in on goal, he was scythed down by Dominic Cherrie on the edge of the box and the referee had no hesitation in showing a red card to the defender.
Inevitably, Camby broke the deadlock moments later when Scott Anson's header hit the post and Gemmell slid in to poke home the rebound.
With the numerical advantage, it was one-way traffic but Newmains' co gaffers Paul Davies and Craig Gupwell will have been pleased to see their defend resolutely after conceding.
They restricted Camby to efforts from distance and even mustered an attempt on goal when Mikey Barton's header called Wilson into his first save of the match approaching half-time.
However, within 60 seconds of the re-start the league leaders had doubled their advantage.
Gemmell fired at goal from 20-yards and saw his initial effort blocked. The loose ball broke to him again and he made no mistake at the second time of asking, drilling a low strike into the bottom corner.
It was almost 3-0 but Williamson got the ball caught under his feet in the box after a delightful flicked ball over the top of the defence by Gemmell.
Jay Nelson saw his curling free-kick turned behind for a corner in 58 minutes and from the resulting set-piece the ball eventually found its way to Anson, who headed the ball into the bottom corner.
The fourth goal arrived two minutes later when Nelson got his name on the scoresheet, producing a sublime finish to find the far corner with a volley.
Gemmell almost grabbed his hat-trick but his hooked volley towards the far corner was turned away from danger by United keeper Cammy Farquhar 13 minutes from time and in stoppage time he saw an effort go agonisingly wide.
Cambuslang host Ardeer Thistle next week in a league clash.
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