Can't like both slop and poly?

[TreadHead]

Does any one else notice that a good deal of the horses who seem to absolutely love the slop run miserably on poly?  Pyro is just one such example.  

Not sure how geeky the TG data guys are, but I\'d be interested in a study that showed...

1) Horses who ran a lifetime top in slop AND
2) also have run a race(s) on poly

What is the figure difference between their best poly effort and the slop top?  Yes, Pyro will skew those figures in a hurry without a large sample size, but throw him out and I\'d still be interested in seeing how that data came back.

Could do the inverse as well, find horses with a top on poly and see how their best slop race relates.