For me the 12 maps were easier to clear then the 11's... I have all maps lvl 1-9 clear and all but 10-5 on lvl 10 as well as all lvl 12 but only 11-4 is clear in the 11 set.

I'm interested tho, is doing Normal missions and hoping for the 80 stam secret garden better then running the 80 stam manyu missions on those days?

I've been doing the manyu missions myself but i've always wondered about it.