If it helps to know, I've always gotten the Limited SR from finding a combo that provides a 2hr30min or higher wait time.
You will occasionally get a boost (i.e. 1 R Gacha ticket will usually give you a 50min wait time, but 1 out of every 20 or so will be a longer wait time) but it is not something you should be counting on. That is why its pretty worthless when someone posts on the forums saying what they used but not listing the wait time - without the wait time we don't know if they got the lucky boost or not.
Most recent SR for me was:
3hrs - Silver short nut
6x R Gacha
10x N Gacha
10x Candy
I think this case was a small lucky boost, i only tried this combo out a few times but usually got a 2hr30min wait from it.
Edit: looked up some past results listed below
Limited SR Matoi Akino:
2hr30min - Silver short nut
2x R Gacha
1x Pero Pudding
2x Pero Pudding Half
^I think that one was off of a lucky boost too, because that combo usually netted a 1hr30min wait time - never got the SR from the 1hr30min normal wait
Limited SR Renge Shirasaki + Limited N Hiromi Oishi
2hr30min - Sliver short nut
4x R Gacha
10x N Gacha
2x Peronamin
10x Candy
^Pretty sure 2hr30min is the normal wait for this without the lucky boost, and I got both the SR and the N in the same reward. However, I tried this same combo out with the next set of Kurito cards about 7-8 times and didn't get the SR from it, which is when I switched to the 6x R Gacha combo I listed at the start of this.
Last edited by Nutakum; 02-13-2016 at 11:30 AM.
PPS / Hitsuji Chronicle: Pizza
ID: 1075264