Thank you for your comments.
My 1.554G play had several misses (both bombing misses and Point collecting misses) and got 866M at the end of Stage 5. But I had a 876M S5 run without bombinb misses one day before, and that's why I made the statement of a 1.565G theory at that time (the score of Stage 6 could not change very much).
There are still three bombing misses in this replay at Stage 4, resulting in 9000 Faith lost. Based on the approximate rate Faith 1 ~ score 700-800, the theory is definitely more than 1.58G now. My best play through Stage 1-5 is scored 891M, without bombing misses, and facing SC70 with full faith.
It is not difficult only to get full faith early, actually, if you sacrifice more point items of SC's.
Lan's replay within one week of the release of the MoF game already got a faith of 960k+. The point is that a good sacrifice should improve the global score. Compared to the old pattern of Marisa, we choose to bomb twice more with the sacrifice of Point items of SC31 and got around 10k more faith, but still retain the Point items of SC43. For Reimu's pattern, I tried
sacrificing both before. Japanese players
coa and
Keroko thought this new pattern improves the score by about 0.5-1M. But
the discovery of the LOST Faith and
the improvement of the bombing strategy after S4 Mid-Boss (which gives up some Power items) make us reconsider the old pattern. Assumed the optimized global scores, it is not difficult to get Marisa's full faith, since the limit is over 1.01M now, while full faith is really a challenge for Reimu, with the Point items of SC 31 and 43 retained.
About "i.Blade": As a forum ID, it is duplicate and is shared by me and another player. As a replay ID, it is only me for the released replays. (This ID is an ad that I'm selling unlocked iPhone 4's, and global customers are welcome. -ω-)