Strong confluence guide the pattern whether it is a Bat or Alternate Bat Pattern. On the bat the .886, 1.618 and 2.14 are very tight.
The Alternate Bat confluence of the 1.13 extention and 3.14 are also tight with some past support thrown in. To play the Bat, I would first want a reversal signal out of the PRZ.
Before entering the Alternate Bat Pattern, should it develop, I would hesitate to play if the 1.13 extention was exceeded too much.