Becky said last time we were out, she could smell something. Becky was sat further back than me. "It wasn't me that she could smell, honest"

I thought we had the roof up the last time we went out, but Becky said the roof was definitely down the last time out. My memory isn't what it used to be

So perhaps the lift belt was slipping a bit.
The yellow Surveyor I had, the lift fan used to eat belts within a few hours of use. When building the original drive for Kermit, I spoke to Bryan Phillips about it & he suggested that I fit two belts to the lift fan, as recommended on the Geoduck. This was why originally there were twin belts driving the lift fan. From memory it was a nightmare to fit the four idler pulleys in such a tight space. He tried to sell me the carbon drive system, but the cost was out of my budget, especially with P&P from the USA & import duties etc.