Heineken Cup champions London Wasps have earned a reputation for peaking at the right time to win finals, but this year their pool is so strong they will have to be on top form from the start.
That is the warning from director of rugby Ian McGeechan as his side set out to defend their title, with a match against the 2006 champions Munster which has been taken to Coventry.
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"We felt we peaked at the right time last season having to beat Castres to in the group and then for the later stages. I do not think we will have that luxury this year," said McGeechan.
"For us it is starting to integrate World Cup players again and hopefully we can start to do that, in that respect Munster have a bit more time over us but we are talking about big time players and they know they have to be ready from day one.
"It was a good campaign last year, great final and good result for us. We have a tough group because all four teams in that group could see themselves as winners so we have six cup finals straight away.
"Munster are a good side, one of the top European sides as far as playing record goes. They have an outstanding record in Europe and great support so it will be very big games against them.
"It is great for the competition to start with last year's winners against the previous year's winners and we have taken it to Coventry because we recognise it will be a big occasion and we like to play in the big occasions with big atmosphere."
With Clermont Auvergne and Llanelli Scarlets in the group, McGeechan knows there will be no let up.
"Clermont Auvergne were probably the French team of last season even though they lost in the final minute of the final. Again you are talking about international style intensity every time you play them," he said.
"Last season playing in France helped us, having to go over there and work hard because they travel well now and are very good sides.
"You remember how good it was last year but you also remember the odd minutes of games which got you there. When you have sampled it, it means even more to you and you play harder for it."