Done 15 ten pulls so far, five of those had no SSR's, the majority of the rest had two on average (though an infuriating amount of dupes). No 5* Naruto's or Kakkashi's, one Sasuke and one Gaara (though on different rolls of course). Probably try and gind out co-op for a second pull of both of those. Though I'd prefer to use the "less optimal" account with Shikimaru and Hinata that I rolled. I sort of hate re-rolling, as it tends to go "Oh a cool new game! *hours of maddening re-rolling later*, Well I can play now but I sort of hate the game" If you're talking about the first single pull the rate on that does seem terrible, I think I got one 5* (Kabuto) out of the re-rolls I did yesterday and today.
Edit: Seems its only the first few co-op "meetings" that give you 2 stone per user, after that it drops to 1 stone. Slows down getting to that second 30 stone 10 pull. But I got there, and it was all three star dogshit with one dupe 4*, bad times. Game itself is fun, the positional gameplay feels fresh for some reason, havent tried auto yet.