There is an overlap between summer and takaure consisting of 540 - 471 = 69 glyphs (or rather 68 when Ga1-1 is counted twice). Counting takaure from Gb2-34 increases takaure from 266 to 268 = 200 + 68, maybe alluding to 168 (= 6 * 28).

But we calculated also the declining days as 68 (= 274 - 94 - 112):

112 = 4 * 28 and 68 = 4 * 17. If we counted the beginning of the takaure season from Gb2-34 the numbers would change to 110 respectively 70. But 180 days for the last (and major) part of summer (beyond the 94 days of increasing light) would remain.

Several number plays are involved, for instance: 2 * 34 (the ordinal numbers in Gb2-34) = 4 * 17 = 68.