Happy to say I passed it with 98%
studied like a devil for a week and it was a lot easier than I would ever imagine.
Self study using google and the FAA.
finished in 35 minuets out of the allotted 2 hrs.
Have a go at it.
Gonna throw an idea into the works.
flying over water. you can get rapid downdrafts due to temperature absorption. And also humidity can have a little effect too.
add wind to it and that might be a possible reason.