A wrong turn in set-up direction meant Colin Edwards finally exceeded the limit of Bridgestone's front tyre during Saturday's qualifying session at Jerez.
The end result was seventh position, marking the first time the Monster Yamaha Tech 3 rider has qualified outside the front two rows in 2009.
“I was really happy with the bike this morning. I was able to run a fast and consistent pace that only the top three were able to better. But we changed a couple of things on the bike for qualifying and it was the wrong direction unfortunately,” confirmed Colin.
“Those changes probably cost me a place on the second row. I kept tucking the front and that has never happened before on Bridgestone. I've not had the front move on me once since I first tried Bridgestone back in November. The front tyre is magic but for some reason I wasn't comfortable this afternoon.
“We'll just revert back to the set-up we had this morning for the race because I had no issues at all really. I'm still confident for the race. It is going to be hot and tyre endurance will be crucial as always.
"I did nine laps on the hard compound and it was spinning but it always does that. It's just how you manage it from that point and I think the setting we had this morning and yesterday will be fine.”
Meanwhile, team-mate James Toseland once again had greater difficulties, his best lap leaving the 28-year-old 14th on the grid for the first European race of 2009.
“It has been a frustrating day,” said the Briton. “We have been working a lot on the bike and when we cure one problem we create another. That session was almost like a test than a qualifying session and it is frustrating because I feel like I can definitely run the pace around the top six.
“I'm just trying to find a compromise between good braking stability and acceleration exiting corners. We seem to improve in one area but then sacrifice something in another area. My pace wasn't too bad on the hard compound race tyre, so if I can get a good start and get away with the pack in front I'm sure I can have a good race and be in there fighting.”
Tomorrow's race will carry extra importance for the Tech 3 Team, with Monster Energy president Mark Hall making a special visit to the Spanish Grand Prix, traditionally one of the showpiece events on the calendar.