Red Bull may consider a similar strategy to Australia whereby they dropped the KERS system after practice because they felt the possible gains wouldn’t outweigh the added weight if the unit failed.

The technology has caused problems for the otherwise dominant team so far in 2011, and at Monaco its influence is questionable due to the many tight corners and absence of significant straights.

The energy-recovery unit in Sebastian Vettel’s car functioned only intermittently en route to a narrow victory over Lewis Hamilton in Spain last weekend.

“I was playing around with the buttons and the brake distribution so it wasn’t an easy race and obviously McLaren and Lewis especially gave us a very, very hard time,” he said.

His teammate Mark Webber told Auto Motor und Sport in Monaco: “We will test with it on Thursday.”

German Vettel admitted that removing KERS from the RB7s after practice is an option.

“If we have some problems again, we need to consider if it makes more sense to concentrate fully on the driving,” he said.



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