The same basic mistakes, poor discipline and lack of a cutting edge from Glasgow allowed the Welshmen run out worthy winners without having to reach top gear.
Llanelli started the match buoyed by the return of eight of their World Cup men and they continued where their national team left off with some slick passing and a desire to get the ball out wide. After Stephen Jones missed an early penalty, a loose kick gave Llanelli the chance to run the ball back at a broken defence. Jones's perfect pass put Tal Selley into the gap and with men outside attracting the defence, he raced to the line.
Calvin Howarth and Jones exchanged penalties but Llanelli went further ahead when prop John Davies powered over for a try after sustained pressure from the Welsh.
Glasgow hit back with a great try from Sean Lamont. Graeme Beveridge wrong-footed the Llanelli defence with a dash to the narrow side before Sean Lamont ducked inside two challengers to dive over. Howarth slotted the conversion to narrow the gap to just five points, the margin remaining as Jones and Howarth exchanged penalties before the break.
Llanelli's power and the accurate boot of Stephen Jones kept Glasgow pinned in their own half for most of the second period. Two more Jones penalties seemed to take the game out of Glasgow's reach, and when Matthew Watkins got the visitors' final try the result was sealed. On one of the few occasions when Glasgow did venture into Welsh territory the forwards mauled the ball over for a Joe Beardshaw try, but it was too little too late.
Bright spots for Glasgow were few and far between with Sean Lamont showing menace in attack and solidity in defence. The big winger has been one of Glagsow's more impressive players this season and it would be good to see what he could do with better service. Nathan Ross made some good drives and often seems to be the only Glasgow forward able to make ground.