Quote Originally Posted by ShadwNinjaX View Post
This got me wondering a certain question and I don't know if there is a definitive answer to this: Is it better to roll single or 10+1? I always figure 10+1 because you get that additional 1 to increase your chances. But I don't know now after seeing what happened to Kurenai. I also know Eab has had some success with it too. It also makes me wonder about that 0.5% chance. Is that low chance determined for the entire 10+1 as a whole or does it still apply to each single girl in that 10+1?
Quote Originally Posted by Volarmis View Post
In the end, it all comes down to luck.
The game doesn't say we have different odds at 1 and 10+1, so all we can do is experiment on our own.
From my experience, I've had some 6* girls from single pulls, both on DMM and Nutaku and for a while I stayed away from 10+1, but hit a dry streak.
After doing a few 10+1 then, I had other rainbows, so I think it's a matter of chance.
In conclusion, I think 10+1 is better because of the extra pull and the Rainbow Shards mentioned by maotd.
Practicality-wise, 11x is superior than a single for that extra draw and 2 rarity crystals as mentioned by maotd/Volarmis. Regarding chances, I myself have always believed that the rates are applied on a per-draw basis, even for batches.

Personally, I've had better luck with singles compared to batches for the majority of my DMM stint (case in point: I wasted 600 flower stones or 12 batch draws on my waifu's gacha for nothing). My recent haul was an anomaly of sorts though. I don't see it happening again.