I have tried all 3 formations and with variations. The only difference is that I used Ambrose instead of Valla because my Valla was used for a transfer and no starts or saints now. I also tried Queen P as a sub. The best I have been able to do is 94% ann that is maybe once a day or less. That was with this variation

Herja - Maria - Adam
flab - main - 0
0 - 0 - 0
Sub Anbrose