@alekabul Correction the tires are now Dunlop L15 550 (204 compound) on the front and L15 650 on the back. See here: https://www.longstonetyres.co.uk/vintage-tyres/dunlop-racing.html
I will make a first draft of changes to the V6 referencing your remarks and will give you a link in PM. When we agree on the final changes then I will release an update here.
Thanks for the care!