Won't always work for everyone. In my case my home park was Seattle, extreme pitcher's park. When I am lining up my SPs at the start of a series I'll look over the home/road splits just in case it might make a difference. I knew who my top two starters were and needed to pick a third. I chose a player with extreme home/road splits to only make home starts.
In a more neutral park, I probably wouldn't give it as much weight.