WGC made it eight from eight with an impressive start to the second-half of this game, in which they gave Luton-based hosts Crawley Green an object lesson in making a man advantage count.
The home side were reduced to 10 three minutes from the break, having given the Citizens a tough opening half-hour and with the scores locked at 1-1.
Then on 42 minutes, Crawley Green's Ricky Clark brought down WGC midfielder Juan Cifuentes heavily. Clearly thinking that Cifuentes was feigning injury, Clark threw the ball at the WGC man when he got up, a reaction that earned him a yellow card.
When Clark continued to express his opinion about that decision, referee Mr Sage had no hesitation, issuing a red card to send him off.
In the opening quarter of the second-half, WGC took their hosts apart with three goals in 12 minutes.
Two minutes after the restart, Sam Perrin played a fine ball down the right. The Crawley Green defence failed to cut it out and Joel Norris collected, to slip inside and drive a powerful shot past keeper Dean Bull for 2-1.
On 53 minutes, Craig Arnott started the move that produced a third, finding Norris on the right. Norris got to the edge of the area before squaring it unselfishlessly for Arnott to come in and turn home his seventh goal in three games.
Still not finished, Arnott produced a fine, defence-splitting pass in 59 minutes, that sent Jason Caswell through and after a series of first-half misses, last season's top scorer made no mistake with this opportunity, stroking it into the corner for 4-1.
The Citizens had further opportunites to score even more, notably when Norris met a Sean Brettell corner with a bullet header past Bull, only for home full-back Mead to clear off the line, as the Citizens finished the game firmly in command.
It hadn't begun that way. Although with just two minutes gone, WGC were ahead. Caswell was brought down by home defender Downey when clean through and from the resulting free-kick, Brettell dinked his effort over the wall and in.
The lead lasted just four minutes. Stuart Strange's pass through the WGC defence, caught them napping and Aaron Wilson raced on to slip it past Joe Croft - the first away league goal the Citizens have conceded this season.
For the remainder of the half, WGC set the pace and missed several acceptable chances, Jason Caswell putting a couple over the bar, while keeper Bull made good saves from Arnott, Norris and Sam James,
But while they had a full compliment on the pitch, Crawley Green were always dangerous on the break and Jack Downes and Wilson again, put good openings wide for the home side.
It was all very tense and a tightly fought affair, until Clark's dismissal. An indiscretion, of which, WGC took full advantage.
WGC: Croft, Perrin (Jenner 67), Kenna, Lovell, Brettell, Cifuentes, Boodhoo (Stellon 63), James, Arnott, Norris, Caswell (Ross 75).