I want to buy a ticket online from Tirano to Milan but I may not make my booked train as it's only an 8 minute connection from my train from St Moritz.If I translate correctly that wouldn't be an issue as my ticket is valid for 6 hours for trips between 51 and 200 km and so if my ticket was for the 1508 could I still take the 1608 as long as I kept within the 6 hour rule. Is that correct?