Kinda wierd issue..... car picking up the worse the air is

No.
Although between the first outing and second outing i did swap to a 4.30 gear from a 4.10.
Havent seen where that has played a factor. As i said, the 60 foot has been identical all 12 passes( same with both gears)
Well thinking about it more, I guess going progressively quicker wouldn't be affected by any changes. Comments about lean don't add up either. Would've been lean last year, too. I can understand something causing progressive slow down, but quicker? Thats a head scratcher.