Somebodies' math still isn't adding up right.

If you "have 8 segs already" then you need another 12 to get to the 60K bonus. If you "have 8 segs already" and still have yet to fly the YWG-YQT-YWG flight, that's still only 10 segments, leaving you 10 short of the 60K bonus. Even with 10 segments, flying another 8 will only get you an additional 10K points, which could otherwise be purchased directly for $290 + tax.

To get to the 60K bonus, you'll need either an additional 10 or 12 segments, depending upon whether you are including the last 2 el-cheapo segments. The promo details are:

8 segments = 15K bonus miles
12 segments = total of 25K bonus miles
20 segments = total of 60K bonus miles