If we identify the snake (GD34) with the lively period when changes happen, then we can put the snake in opposition to the turtle (GD17), who moves so slowly that he seemingly is standing still. They are symbols for maximum and minimum movement.

And if these thoughts are valid, then we may search for 'proof' in the rongorongo texts, by studying where GD34 and GD17 are located in relation to each other. They should normally not be located close to each other, presumably only when some kind of enumeration or contrast is described.

In the calendar of the week (H/P) kava is located in Thursday, reasonable as the element of Jupiter is wood. I find no honu in this calendar and where would we possibly have expected it - there is no standing still in the week.

In the calendar of the moon (C) we find honu in the 8th and last period, but no sign of kava. If there would have been any, I suppose that the middles of Waxing and of Waning Moon would be the correct locations. That honu appears at the darkest time is reasonable, because that is similar to winter solstice, a period of 'time-out'.