No. I'm rather much a calendar planter, give or take. It's not that I don't do crazy stuff, it's just that when I do crazy stuff there are reasons and the hope for continued rain which is hiding the scorching sun isn't crazy enough for me. I once invested $30-thousand in a stock and turned it into $75-thousand in six weeks. The risks were immense! I was really happy until it turned "hot and dry!" I turned my $75-thousand into $12-thousand in a matter of days.
My point is, sure, go ahead and risk some if you want, but keep to tradition with most of your plantings. Those dates have been proven over and over and over.