Lewis Hamilton's #2 and team mate Valterri Bottas is better than Lewis Hamilton when on a "green" dirty track that hasn't had cars on it yet for the race weekend.
But because he is always bigger odds than Lewis Hamilton in the race win market, he is always bigger odds when fastest in Practice 1 session odds are posted.
For the last three years he has opened at about +450 to be fastest in that first practice session, He is payiing +450 again for todays first practice in Italy in about 9 hours time.
Last race was washed out but he topped P1 the one before that and came 2nd by thousandths of a second previous to that. He has topped P1 5 times out of 13 races this year, implying his true odds to do it are +160
He also topped P1 last year at this race track in Italy too. I think his True Odds are actually about +100 today.
He is changing teams at the end of this year, so the angle will end, and I don't mind sharing it in public now.
There are 7 races left this year to feed in the trough if you like angles that give 4.5x true odds on your bets ;-)