Intended for BAERS "Geometry Ball". 2023-04-29
Trying to put double triangle settings into an easy frame.
(Although Wilson's Double Triangles are not this.)

3-couple longways

1-2: 1s set moving slightly forward; then extend downward arm
3-4: 2s giving 1s handy hand, they turn half way on the side (1s through 
     the middle) leaving 1s  in 2nd place facing out
5-8: 1s and 3s handy hand turn once round, leaving 1s in second place 
     facing out.

9-10: 1s amd 3s retain the hand they had; 2s take the other hand;
      all set right and left.

11-12:  1s in the middle cast tight right (staying back to back)
        to face other line.
13-16: repeat above, now on own side facing out.

17-24: (without strict timing)
       1s down the outside, up the middle to top,
       down the outside to 3d place as 3s move up.

25-32: 2s at top and 1s at bottom CCW poussette
       all the way around 3s in middle.

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Other ideas: B2 = circle left and right.

A2: corners Petronella one place while 1s cast 
(at the end of two double triangle settings the
3s in 1st place, 2s in 3d place, all improper.
[Gotta do something. 

Kinda interested in a super-zingy version 
where 1s travel outside the set while corners
balance and travel.