Well I can after playing a bit tell you the Sequence is:
Low bit first
7 bit shading data per color. the upper bit must be a "1" on all data transfers
24 bit block per LED, "first to last, GREEN, RED, and BLUE"
upon finishing the last data byte an additional (3) bytes or 24 bits of "0" must be transmitted as a latching kinda thingy.
DATA Steam = G0 / G1 / G2 / G3 / G4 / G5 / G6 / "1" / R0 / R1 / R2 / R3 / R4 / R5 / R6 / "1" / B0 / B1 / B2 / B3 / B4 / B5 / B6 / "1"
repeat once each for as many LEDS that you have. 32LEDs = 32 times
then (3) bytes of nothing ( zero) "0"
All of this was done on a Chipino board, running PBP3.
works great and very fast.
Hope this helps someone!