Originally Posted by Eve6

I have 2 accounts and opened probably 24 total on each, and i have 1 6 star and 10+ 5 stars one one account, and 2 6 stars and 10+ 5s on the other.

Citation needed

I think it's been a while since I pulled a 5 star. I believe not since I first started the NA version of this game...

->Open Spoiler<-

You can set up a simulation at random.org to get a feel for what to expect on a 10+1 pull, assuming you believe the advertised drop rates and FKG random number generator are legit:

Select "Integer Generator". For the number of integers to generate, enter the number of pulls you want to simulate and multiply by 11; so if you want to simulate thirty 10+1 pulls enter 330.

Next enter 1-200 as the range of integers. A range of 200 is needed since 6*s are only a .5% chance:
3* = 63.5% chance ------> 200 x .635 = 127 integers
4* = 30% chance ------> 200 x .30 = 60 integers
5* = 6% chance ------> 200 x .06 = 12 integers
6* = .5% chance ------> 200 x .005 = 1 integer

So here's the breakout:

3* = 1-127
4* = 128-187
5* = 188-199
6* = 200

Last field is to format in a specified number of columns; enter the number of pulls you're simulating.

And presto, you get columns of 11 that each represent a 10+1 pull. As you scan the column look for how many times a number 128 or higher comes up (4* or better), how many of those are 188 or higher but not 200 (5*) and if the number 200 comes up (6*).

For those that pull bad, it's validating and depressing at the same time.

There's this gacha simulator, it's for the JP version so has unreleased girls but you can still test your luck.
http://flowergacha.web.fc2.com/index.html

That link fills me with no hope. On that subject, does anyone know what % changes are in effect for the limited gacha system? Does the Rainbow 6* raise from 0.5% to 1% for the 3 girls that are on? Or does it stay at 0.5% but only selects from those girls?

The chance for the rarity itself stays, just the chance that if you get the rarity it is very likely to be the promoted character.