Originally Posted by Garrick

So from the current tests, the 2x Rare Gacha Ticket + Pero Pudding has somewhat a higher chance on giving out the limited SR?
I already got the normal and rare cards from Kurito, only the limited SR remains (sorry, I forgot what I gave her though, but I recall wait time was around 1:40:00)

It seems to me that the chances are determined by the actual wait time.

I'm still waiting to see if it is actually possible to get the limited cards with nothing more than a 2 point donation to Kurito.