I think my game is broken (not that I'm complaining)

So last Saturday, I decided to go Shiny hunting on Ultra Moon... (without a Shiny Charm)

In less than 20 SOS calls, I got Furfrou (I was hoping to get a girl...)

In about 100 SOS calls, I got Tropical, my shiny Petilil (later evolved into a Lilligant)

And then on Sunday I was hunting a bit more.

I was watching YouTube when I looked down at around the 100th SOS call, only to see a blue Zorua (was hoping for a boy)

After searching forever for a Bisharp, I SOS chained her until I got a shiny Pawniard at about 150 SOS calls (was hoping for a boy)

I decided to look for a Shiny Vullaby. After about 175 SOS calls, I began to lose hope and looked up what Shiny Vullaby even looked like. Right as I did, I got one

And then I wanted to get a Shiny Minccino. Um, I got one after only 2 SOS calls (thanks to ImberLapis for the name!)

And then, on Monday, I was at school when I found another Minccino! Because of the lighting, I almost couldn't tell, but then I noticed the sparkly star. (Thanks to RoyaltyGamer for the name!).

Okay, so as I was writing this, I was hunting for a Shiny Elgyem. Well, 250 SOS calls later...

I named him Sirius, based on the brightest star in the night sky.

Okay, and I need help with who to evolve: Frosting or Sugar (my Minccinos). Shiny Cinccino looks like brown sugar, but Sugar has only one decent IV and I would rather her stay a Minccino. Frosting, though, has five perfect IV's....

Oh, and who should I hunt for next?