I'd try for good/fast. But beware!!! Days like this often produce big biases and biases that change as well. While wet and sealed the track may play to speed or pressers. As it dries out(the slope of the track cannot be seen by the naked eye but it does exist) it always dries from the outside in. Makes the outside footing firmer and better and you may see horses catapulting the down the center of the track. Keep an eye on conditions and watch races even if you aren't playing them. Days like this are extremely tricky but can be extremely rewarding for those who pay attention and draw the proper conclusions about how races are flowing.