Three through and two to go - with the Pool 2 tussle between Worcester Warriors and Perpignan poised to be the final piece of the quarter-final qualification jigsaw only when the final whistle goes on the Pool stage action in Round 6.
Gloucester Rugby - the 2006 tournament champions - booked their place in the last eight with a 31-26 Friday night win on the road at Bordeaux-Begles while Bath Rugby maintained their winning record, also over French opposition.
Agen made them fight all the way for a 19-16 win but their 24 points ahead of the visit of Bucharest Wolves in Round 6 gives them a golden opportunity to finish as the top seeds.
That would see them avoiding any of the three Heineken Cup runners-up who qualify for the Amlin quarters and playing the fifth best of the group winners.
London Wasps are also through on a red letter day for the Premiership after running riot in a 71-7 victory over Rugby Mogliano at Adams Park.
With each having one match to come, Bath are out in front on 24 points with Gloucester on 22 and Wasps on 21.
But in Pool 2 it really could not be tighter, with Worcester Warriors and Perpignan locked together on 20 points - and if they each take maximum points from their Round 6 contests it will be heartbreak for the Warriors.
The clubs are level on five match points each from their head-to-head contests but the French club have the advantage of outscoring Richard Hill's team 3-1 in tries.
