Difficulty: 4 - Applied-Intermediate Trick
Siteswap: 7131
Prerequisite Skills: Shower
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A.K.A. - Shower under a Shower
High-Low Shower is a cool looking trick where you juggle a small shower underneath a higher shower. These can be done with any number of balls, but this one is the easiest, of course.
Instructions:
While juggling the regular 3-ball Shower, make one of your throws extra high. While it's in the air, make a small 31 exchange underneath it. Continue alternating the high throw and the low throw.
Variations:

You can also juggle a form of the High-Low using sync throws. (6x,2x)(2x,2x)