*3 persons in a triangle numbered clockwise 1,2,3 from the top*

1–
: 1+2+3 RHA ; LHA
9–
: 1 sets as in DTr with 2+3 | all adv & pull back RSh to invert triangle ; repeat
17–
: 1+2 set | cross RH ; 1+3 set | cross RH (2,3,1)
25–
: Circle3 to L & back (2,3,1)