While this weapon is very nice it also comes with its shortcomings. The delay on this weapon is such that it requires a bit more Store TP than it's NQ counterpart. Leveling up with the Shinimusha Haidate and Rajas resulted in this particular version of the Couse requiring an extra swing when compaired to it's NQ version. I imagine if you had the level 50 Store-Tp body you could effectively achieve 100 TP in the same number of swings however, the opportunity cost is something you yourself will have to calculate based on your gear.
Piggy back on Ten's comment, with SAM lv.50 JSE, TP per hit = 16.9, bringing hits needed down to 5.9 (6 hit build). Downside being your TPing in other than Hauby.