Hello everyone! I would like to seek help from those who had experience and for those who are more knowledgeable. Idk if I'm counting my draws correctly. I have been saving up my seal scrolls for the next rebate. I would just like to know if my assumptions are correct.

I have all Rares in GNW Treasure, which is 9 if I'm not mistaken because Fuguki and Pakura are not rares in this treasure but only common ninjas? With that said, it means that I have at least done 540 draws if we assume I got the rare ninjas in every 60 pull (60*9=540). Now, I have 1 dupe Ringo, which would be equivalent to 60 seals, 1 dupe Zabuza, which is also 60 seals, and 3 dupes Toroi, which is 180 seals. If we total all of them, I have 540+60+60+180=840 draws total. Now if we're to assume that I got 1 Hashirama frag every 60 pulls, then that would mean I have at least 14 Hashirama frag (840/60=14) and I have 18 frags off him which is not too far off from the calculation given that we sometimes can get 2 Hashirama frags instead of 1.

Is this calculation correct? I'm just wondering because others already have 28+ Hashirama frags and they still do not have their SR, which would already be equivalent to 1,680 seals scrolls (60*28=1,680) and most who got their SR claimed that the average based from experience is at 1,050-1,200 seal scrolls. TIA for those who will help.