Poi CAPs

CAPs are Custom Assembly Patterns or, according to Nick Woolsey, Capped Antispin Patterns.

Term explanation

A very detailed overview of CAPs history and varieties by Drex

C-CAPs tutorials

Very detailed tutorials on how to do CAPs (C-CAPs to be exact) by Nick

And a tutorial by Drex:

CAPs switchbacks

A beautiful pattern with CAPs by Nick

8-step CAPs tutorials:

A nerdy concept that is also used for other double props (double staffs, fans, mini hoops)