I have a bunch of information here, and this thread has no response for a while, sorry for the double posting.
It turns out that the hitlag modifier is working, only that they are using a slightly higher hitlag than us. It's around 75% I guess.
And this was done because they felt that multi-hit attacks are doing too much damage, and DDD's dair combo is too hard to get out of. I sent Arkaether to tell them about QCDI, I'm not sure if the porter changed his mind though. What I want is that we have a same codeset.
Some of them had some online matches, and the online handicap disable code turns out to be not working. They are fixing it though.
Lastly the Gravity/Jump changes are still not working yet, though the coder is not aware of this. Arkaether told them about the MK nado thing, though.
And they noticed the timer glitch, can someone answer their questions, in JP of course? All in the Brawl+ Wiki.
Lastly, I would like to see more video submissions. It's hard to find a good match by just searching on Youtube. Low tier characters going even with higher ones would be best.