A Bias or no Bias?

After a week of Polytrack at Woodbine, inquiring minds want to know...have there been biases to the surface?
Many pundits said Wednesday night was a strong inside bias and that speed horses did well, much different than the first few days of the surface in which closers dominated.
Thursday, several speed horses won but the pace was so slow for those events that the speed could not help but win.
Jockeys can often influence the way the track plays and when most of Woodbine's jockeys are suddenly taknig strong holds of their horses and letting longshots get loose on the lead, look out.
Thorough-blog would love to hear some feedback from anyone watching Woodbine's races these days.