Pirelli has urged Formula 1 fans not to over-react if there are more four-stop races this year, after being forced to give up on plans to make its tyres more conservative.
The Italian company had hoped to be able to tweak its tyres this year on the back of unease about the high number of pitstops required in some early races, as well as a desire to eradicate the delaminations that affected some drivers.
But with a number of outfits blocking any attempt to change the tyres, amid fears it could hurt their competitive form, Pirelli is now only tweaking the bonding process used to make its rubber.
Pirelli motorsport director Paul Hembery concedes that he would have preferred being able to make bigger changes to the tyres, but says fans should brace themselves for some races where there will be more stops than usual.
"We have 19 circuits this year and that means a lot of variable conditions," Hembery told AUTOSPORT.
"Sometimes we will be in the consecutive band, and sometimes we will be pushing it right to the end level because it is related to the circuit.
"The teams do improve their tyre management, as we have seen in the past few seasons where it tends to be lively at the start [of the season] and then by the time we get to Hungary things have levelled out a lot.
"But I think we will have tough races yet. We have Silverstone coming up - and if it is warm then that again can be a hard race from our point of view."
He added: "So we will probably have some races with four stops, which we have said we don't want.
"We would have needed to change the hard compound to avoid that, but to do that we would need the agreement from all the teams and we know that is not going to happen.
"We can do it if asked, but [in the event of four stops], my message would be stick with us for a few races. We talk about averages and over the course of the season we are aiming for an average of two stops."