I apologize for missing that.reading back, I was referring to using S-189 in the 1 gal batch. I guess I thought that was implied. But, for now I have tasted diacetyl in every lager I have tried. I used Novalager once on a test batch and it cleared within a week.
I'm using brewzyme-d in my current brew with s-23. The 5 yeast test I am going to do was to include 34/70, S23, S189, Lutra, and Nova in a split batch. I think I'll leave out the lutra and do a second 34/70 without the brewzyme and see what happens. I think this might answer if the batch of 34/70 I have is somehow not good.
I have nothing else to offer, I just hope things work out for you. It looks like you have a solid plan in place, and that's the key thing. You're going to get this figured out!