Ammanford had to travel to Pencoed to finally discover the winning formula this season after claiming their first success of the season.
Flanker Ellis Lloyd wrapped up a bonus-point victory for the Amman valley club after wing Wayne Price, centre Mike Errand and No8 Chris Jones had all crossed in a 28-11 victory.
Aaron Halfe's reply for Pencoed never looked to be enough to save the Bridgend side from a third straight loss of the Division Two campaign.
They are not alone in making a slow start to the season with three other clubs also searching a first win three weeks in. Mumbles were edged out 35-31 at Pontyberem, Aberavon Quins picked up a losing bonus point at BP Llandarcy 16-10 while Aberystwyth were out-gunned 43-7 at Loughor.
Maesteg marched to the top of the table after running in five tries in their 35-18 win at Kidwelly.
In Division Three there were few problems for Laugharne, who dispatched Gorseinon 49-19, or Llandeilo who made similarly easy work of Llanybydder 41-3.
Andy Andy Llewellyn scored twice as Seven Sisters won 48-16 against last year's Division Three south-west surprise team Bryncoch, still coming to terms without coach and former Wales centre Leigh Davies.
Amman United stormed past Tumble 49-14 in Division Four while Taibach won a third game in succession, 34-12 against Resolven
The last five years have been an emotional rollercoaster on and off the pitch for RGC1404. Promotion to the Principality Premiership was the culmination of five years of hard work and investment in North Wales. WRU TV caught up with prop Joe Simpson, who was one of the first intake of WRU North Wales Academy players in 2010.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s