Well I put Kimi's over the PESUniverse one. Didn't make a mess and just had to reorder leagues.
In general not really happy with PESUniverses approach.
I worked on 2019-20 and 2020-21 season, and i was practically alone at the end to create teams.
But honestly, the last version i have released without being presumptuous is the most worked overall and in terms of duplicates etc.
If i joined them, it was to get less to do... And my amount of O.F. work increased by 10 lol. So much errors to correct, people wants everything at once, it's not like i'm working : team by team, not a full league with plenty of missing stuffs and the impression to play the real thing because they got emblems and kits, big laught on that.
It was really hard as i got to work on their very bad basis from PES 2019. So a lot on MLS/Bundes/Others Euro/Others America (every single face are redone same as stats for every players) But very late, i posted it in July.
Now i would also suggest Kimi's work even if it's still a bit amateurish to my taste and to what i did on PES 2021 pre-winter and post winter... Also the Bundes stats were made by a pro, who was in charge of Serie A that time.
During that time they released V5 V6 i didn't worked and which fucked up the database. They miss way too much real data editor, and got more than enough kitmakers. That's not my mojo : database first.
So you can just put the 2 season 19-20 and 20-21 apart, except that i didn't liked their O.F. from PES 2017 to 19 and the version after 2021 (21-22 season). The thing is they make you though they're a lot, yes, they're a lot for making kits. No stats maker or facemakers, one guy or two retouching here and there, with a lot of errors.
I checked Kimi but 21-22, it's an okay work but it miss a bit of structure (duplicates etc.) face-making is very selective, stats are more or less acceptable.
Too much worked on those versions so i've made an overdose lol or i would have worked on a 22-23 O.F. based on Efootball conversion (long to explain, a bit long to do, but there's a way to convert stats from Efootball BUT you will get PES 2021 MOBILE style. No big difference except keepers who got higher outfield stats due to the "+" conversion system)