last I rode it 536 still has the nasty tar strips all over it, 556 has them also but only a few. Plus it is less of a technical road anyway. Not saying don't ride 536 just use extra care when doing the corners with tar strips in them(about half of them) Weather is looking so so right now 30% chance of rain. I will still hold my more then likely gonna make it stance for now. And H you can always split mid ride if you want to get out and not put to many miles on your tires? I do it all the time, if I have other things I need to do and want to get some miles in still.