It's a pain in the ass for players also, GP is the one track where I have the least confidence in my handicapping because of all those variables, and how many synth races they card.

I prefer a track to only use two surfaces, turf &/or dirt/synth.

I thought the synth at GP was only to be used in case of off the turf or unsafe main track. But it seems most of there races are carded & ran on synth.
Any idea as to why?