3 - Although you have passenger numbers, my observations suggest otherwise. There was only 1 other person using the upper deck other than myself this week on a glorious sunny day in the school holidays when I travelled - This is typical of many journeys in recent months on this route. Western Greyhound operated the route at the same frequency using coach certified Mercedes Beaver, so no standing capacity all year round in their latter years - They interworked the route with Padstow to Bodmin, with the same vehicle running through from Newquay-Padstow- Bodmin so could only use single deckers to get under the low bridge at Bodmin Parkway -
Where have all the extra passengers appeared from to warrant needing double in capacity within 18 months? On a wet day its even quieter as nobody heading to the beach, so cant see an open topper being insufficient on a poor day.
The 57 on the other hand has been full up and down and standing downstairs whenever I've used it, especially on the Portreath to St Ives leg.