"Although it didn't show it on track last year - and you could spend a day debating why that was - we did get a lot of understanding during the course of last year with the tyres and what was needed to do to manage them," said Bell.
"It didn't reflect on the performance but that may be for different reasons. But it did mean that we entered this season with a pretty firm understanding of what we needed to do to address the issues and hopefully we now proved that we got that right over the winter.
"So we go to this season in a much better shape, our eyes much more open to what we need to do with these tyres."