MotoGP title leader Marc Marquez spent much of Monday's post-race Brno test trying to improve corner exit wheelies on his RC213V.
Unfortunately, what the Repsol Honda rider gained was overcome by loses in other areas, leading him to conclude "the best compromise is what I had yesterday."
The Spaniard, who set the third fastest test lap behind Yamaha title rivals Jorge Lorenzo and Valentino Rossi, said:
"We tried to improve on [corner exit] but basically we didn't improve! But okay we try and we got some information.
"We concentrated especially to understand how we can manage the wheelie. How we can improve with the weight balance. We improved with some modification, but then we lose a lot in another part of the circuit.
"So in the end the best compromise is what I had yesterday.
"Then we tried a new swingarm and was some positives. It is for the exit of the corner also to try to get a little bit more grip and gain acceleration. We focussed all the test on that area."
Development 2017 Michelin front tyres were also available at the test. Like the Yamaha riders, Marquez was impressed with the revised design.
"We tested some new front tyres from Michelin, more for next year, and one was very positive. The other one more similar to this year," he said.
"Honestly with the tyre that we have now I feel really good and feel that I can push and everything. With the new one we improve the stability in the middle of the corner, but is something that I feel good with the one we have now.
"With Honda we are pushing [the front tyre] more than the other bikes. I'm happy with the tyre we have now, but looks like Michelin always look forward to improve and this is good."
Marquez, third in Sunday's wet race, holds a massive 53-point lead over Rossi heading into the British Grand Prix on September 4.
CLICK HERE for full test results
By Peter McLaren