"Square The Bases Plus 2" means replace Split Square Thru 2 with
Split Square Thru 4.
"Sets In Motion Plus 1 (or Plus 2)" means that 1 (or 2) more of the dancers
in the resulting Center Column have the first peel left, then next peel right.
Plus N is a lateral dodging movement towards flow direction.
The number indicates the number of half-positions to slide. For
example, from a R-H Wave,
a Recycle Plus 1 would be a Recycle then all 1/2 of a "Left" Truck.
This version of Plus N requires that the previous call have lateral
flow (e.g., Bounce, Recycle, Ah So, Wheel & Deal, Turn & Deal,
Shove Off, (Outsides after a) Plenty, Shuffle The Deck, (Outsides after
a) Swing & Circle, Shakedown, Ferris Wheel, Turn Over, (from Couple)
Cast Off 3/4, (Outsides after) Take N).