Scarlets earned their second bonus-point win of this year's LV= Cup to move top of Pool Three by crushing Cardiff Blues 30-3.
Tries from Adam Warren, Kirby Myhill, Richie Pugh and Kieran Murphy earned the visitors their resounding victory, with Cardiff thoroughly outplayed.
The Scarlets were looking to build on an opening win against Leicester in the competition, while the Blues were out to make up for an opening defeat at Newcastle.
Scarlets took an early grip, scoring a try in the second minute. The try was simple but executed superbly, with a pop pass from outside-half Aled Thomas to centre Warren who went through unopposed under the posts. Thomas converted and added a penalty for offside eight minutes later as the Scarlets got their reward for dominating territorially.
Better was to follow in the 18th minute as hooker Myhill showed skills any back would have been proud of to dummy his way over to finish off another period of Scarlets pressure on the Blues line.
It took half an hour for the Blues to launch a meaningful attack in the Scarlets half as their pack finally managed to win some ball for their backs to use. That pressure was rewarded when outside-half Rhys Patchell put his side on the board with a penalty from 30 yards.
Thomas missed a 40-yard chance to put the Scarlets further ahead and then they spurned a kick from in front of the posts in the last move of the first half, choosing the scrum instead but knocking the ball on going for the line.
It took until midway through the second half before the Scarlets had a chance to make up for that mistake, Thomas notching another penalty kick at goal - this time from 35 yards out. Until then the second period had seen a flood of substitutions as both sides brought even younger players off the bench to give them experience at the top level.
A player at the other end of the experience scale sparked the third Scarlets try, as Scotland centre Sean Lamont, back from the World Cup, took a quick tap penalty in a kickable position. From the ensuing period of pressure, replacement flanker Pugh was able to force his way over from short range.
The visitors secured the bonus point with five minutes to spare, Lamont again starting things before replacement outside-half Dan Newton put number eight Murphy over beside the posts. Thomas added the conversion.