Pirelli is aiming to create a return to two- and three-stop races next year after admitting it has been too conservative with its tyre compounds this year.
Part of the problem Pirelli faces is that it has just four compounds to cover 19 different circuits a season and also has very limited track time in which it can test new ideas. With the cars improving this year, Pirelli wanted to make sure it had a tyre to cope with the extra performance, but motorsport director Paul Hembery admits it went too far.
"With hindsight, we have probably been a little bit conservative with some of the choices and we are not hitting the target that we have always been asked to do, which is a two- or three-stop race," he said. "That's something we hope to address next season.
"We're pleased and a little bit surprised at some of the results we've had. We have such limitations on testing - or no real testing - and we wanted to ensure we had less tendency to blistering and chunking, which we have certainly achieved."
Pirelli is planning to bring an even softer tyre to its range next year for street circuits as well as bringing the hardest compound closer to this year's medium compound.
"We are still hoping to develop some ideas of how we can address the hard tyre, which is in need of modification," Hembery added. "We also want a product that can be used on the true street circuits, maybe four circuits like Canada, Monaco and Singapore where you need a much softer tyre than the current super-soft."
But Hembery said Pirelli needs more testing if it is to remain as the tyre supplier in 2017 when F1 is planning to introduce wider rear tyres and significantly improve the performance of the cars.
"If we stay in the sport then you can imagine that with the changes that are currently forseen for 2017, which are wider rear tyres, I guess a modification to the front tyre and cars that have a very different aero load, I think in that scenario the sport needs to look at how it is going testing. The change is so vast that you don't want to end up in Barcelona in March finding out that you've got major problems. There needs to be a way found to do some testing before that."