So, I waited to test out the new Event Pachinko myself before commenting.
First let me say that I had recently cleared out the permanent Epic Pachinko girls so that I could more easily go after the event girls I wanted as they came up. I did this with some real cost.
This addition of the Event Pachinko caused me some trepidation but I decided to spend at least what it would have cost me to get the Sci-Fi Pachinko girls I wanted. After 10 spind (18000 kobans), I netted exactly one girl, a couple useful single stat items, a couple avatrs that I couldn't care less about and a bunch of gifts and garbage items. Needless to say, these results are below what I would have been guaranteed under the previous Epic Pachinko system.
This marks the deeath knell for this game as far as I'm concerned. After spending real asset to get myself to a desired position, Kinkoid has changed the rules. I will not put another dime into this game. This change has totally destroyed the pursuit of my objective, to collect the event girls for a reasonable cost.
I have about 20days left on my monthly card. When that runs out, I'm gone. Good luck to those who stick around.