Fantastic week, very hard riding, incredible roads.
Few conclusions.
Continental Road attack at the rear did not hold it. Got burned once (Saint Bernardino pass, swiss side), surface ripped on other rides, shavings on surface confirming that tyre not getting warmed up progressively, just kinda cold-overheating-cold-overheating all the time.
Front Sport attack not brilliant either.
Warning for Firestorm owners: small hose that is taking care of coolant overflow in very hard riding may dump some relatively small quantity of coolant, but unfirtunately some of it gets on the lower fairing (stock) and get's sprayed onto rear wheel all over it. Not sure why I did not crash, guess just pure luck. I rerouted hose completely so if worst comes to worst it will dump coolant on kneepad.
Of course easiest is to use racetrack approach - using distilled water.
Regulator Rectifier finally decided to fail on me, it's old 97 type with no cooling fins. Fortunately I managed to ride on fully charged battery for whole day, then we swapped battery with one guy and managed to find new RR in small Honda workshop in Austrian town.
We rode majority of passes in Austria, lots in Switzerland and quite a piece of Dolomites in Italy. Not huge mileeage but extremely challenging roads and we went really too fast sometimes.
Basically we had russian/ukrainian origin riders group of about 6-7 people from Germany, Switzerland, France, Austria and Belgium. And one great German guy on old R100R beemer (special version) that was VERY fast. All different bikes - from FJR1300 to GSXR.
And we were lead mostly by one of my friends, he is demonically fast rider (trackdays regular GSXR man who lives in Switzerland) who managed to ride faster than anyone on old Yamaha Tenere 660


Of course we did some "typical" passes too. Grossglockner pass (it was almost empty, Monday evening), Silvretta pass, Stelvio pass (2 times using different approaching roads).
Worst car drivers prize goes to Italians followed closely by Austrians

My Firestorm returned average of 6.5 liter per 100 km. No, it is not running lean. It just fine. Of course speeds on those twisties were limited and I found that best approach is to take them at steady throttle at 5500-6500 rpms, at least on my bike. Lot of fun was every time dropping into turn and progressively start opening up right away from entry. Well, tyres were not really up to it, rear Conti just started ripping on surface and slid a lot but in predictable way. Immense fun. Then we had one pass when we kinda been pushing it on really bumpy surface and my rear wheel few times fully lost contact with ground and engine was revving like mad

I am not sure about overall mileage, I think about 3500-4000 km including 2X650 km to/back part.
If anyone needs information where to go for best roads etc. - will be glad to help. I will post some photos when my friends with cameras will upload all stuff.