I have to say top effort for all those involved in the prep and laying of the new astro...
I like the features too and as Dunc said, the double double requires a bit of throttle 'off' rather than 'nail it' to get it right. Too much 'off' and the lap times suffer, not enough 'off', and you crash... So def skill needed...
The Astro is (for me) unbelievably grippy, and consistent... So if thats what you wanted, you got it! For me, perhaps its a bit 'too' touring car and 'scalextric' but I'm sure thats just my personal taste and I still miss the old skool 'grass' (mud) track years back! So I hope you know where I'm coming from.
Its not a criticism, just a preference. I really think what you've created will suit the majority of drivers and pull in more too... Well done!