This Tenerife thing is funny.
In January a few years ago (2006 i think) I was in Tenerife for a work meeting, and took the bike, to stay on for a week and do some training for the Cat 2 crit season.
I was riding up Mt. Teide (brutal) and I saw two T-Mobile riders training with a Gerolsteiner rider ahead of me, and I actually caught up with them. I think one of them was Stephan Shreck, I don't know for sure. I heard that Leipheimer was around too.
They looked really knackered riding (slowly) up that hill to be honest....if that's Ferrari's best medicine it clearly takes a week or so to get going!