Vittoria Corsa Pro vs Corsa Speed

IF the new Corsa Pro Speed are amazing in other aspects - puncture resistance, wet grip etc. then there’d be an argument for leaving them on for everything and setting them up tubeless, but I think the ability to quickly swap out to something like GP5000TT for bad surface

Can you explain this : Why Gp5000TT for bad surfaces ?

I’ve found it’s got better puncture protection than the top end Vittoria/Veloflex/Michelin so is a safer (but still fast) choice on broken surfaces

Thanks

When comparing the 24 to the 26 how do you pick tire pressure for each in your tests ? The optimal pressure for one won’t be the optimal for the other.