Increase osu!mania HR ScoreV2 mod multiplier to 1.20x.This seems like a really significant change, coming from a multiplier of 1.06x.
Consider an FC on an OD 8 song with a perfect normal distribution and standard deviation of 20ms (i.e. 200 UR). Disregarding combo score, this would give a score 959.3k:
SPOILER
R300: 57.63%
300: 37.75%
200: 4.50%
100: 0.20%
50: 0.00%
300: 37.75%
200: 4.50%
100: 0.20%
50: 0.00%
Consider the same play, with HR turned on. The score is now reduced to 910.3k before multipliers:
SPOILER
R300: 41.77%
300: 42.10%
200: 15.22%
100: 0.89%
50: 0.20%
300: 42.10%
200: 15.22%
100: 0.89%
50: 0.20%
With a 1.06x multiplier, the HR score would've been 964944.5k, which is very close to the no-mod score. A 1.2x multiplier would make the score skyrocket to 1,092.4k. A mere 820k HR rank S score, including several 100s and 50s, would dominate a 980k rank SS score.
HR's 1.2x multiplier is so good, you're only better off playing no-mod when HR makes you fail a song or if you're trying to play a song that's way out of your leage. I would suggest keeping it roughly at its original multiplier of 1.06x. Emphasis added to roughly, because I'm sure 1.08x would work out just fine. I just can't be bothered to dig any deeper right now.
On a side note, I'd like to point out how incredibly high the aforementioned HR score is. Assuming a 1000 note song, that's 152 200s and 9 100s. Both the no-mod and HR scores would be even closer to both the 1 million mark and each other, because I ignored the combo aspect of the score. This just goes to show how severely unpunished bad judgements are in ScoreV2. Using a purely accuracy based scoring system similar to Stepmania's MIGS DP, does pretty well in this situation:
SPOILER
MIGS-like scoring system, giving score like this:
R300: 3
300: 2
200: 1
100: -2
50: -4
Miss: -8
No-mod score: 841.6k
HR base score: 740.5k
HR * 1.20x: 888.6k
HR * 1.06x: 784.9k
Because of severe punishment when hitting 100s, 50s and misses, the 1.2x multiplier doesn't seem so bad anymore. If you can't play incredibly accurately, these bad judgements are going to lower your score to the point where you're better off playing with no-mod. That's how I think it should be.
R300: 3
300: 2
200: 1
100: -2
50: -4
Miss: -8
No-mod score: 841.6k
HR base score: 740.5k
HR * 1.20x: 888.6k
HR * 1.06x: 784.9k
Because of severe punishment when hitting 100s, 50s and misses, the 1.2x multiplier doesn't seem so bad anymore. If you can't play incredibly accurately, these bad judgements are going to lower your score to the point where you're better off playing with no-mod. That's how I think it should be.