In the race I was able to lap just as fast on the hard tyres, so is there any difference?
I need to upload the results tonight to double check - but S-tracker gives my own times as
01:21.982 on softs in qually
&
01:22.355 on hards late in the race (Lap 28)
The main difference is cornering speed and braking, my car was MUCH more pointy on the softs but I suspect it was down on top speed.
Soft also heat up easily so you have to drive smoother while still sitting on the limit of rear grip to overcome the understeer, get it wrong and it'll cost you grip for a lap so after a singe error while the tire cools again.
Don't forget tire life though, the Hards were still green at the end, softs would be hurting after 40 minutes.
In contrast I think my doughnut at the end lasted at least 30 seconds before tire failure from heat and I was regularly drifting into/out of the tighter sections during the race