Easy Grand/Reliable/Mighty Battle Brawler Trophies

[Link1987]

I've found a curious thing while playing this game:

I've created 6 diferent saves (1 for each atribute so i would get the Atribute
wins Trophies more easily

What i've found out is that on my third save i won the Reliable Battle Brawler trophy with only 13 Tag Wins; i know... strange right?

When i went to see the other saves the total was 20
- save 1 = 1win (subterra - at tag tournament)
- save 2 = 6wins (pyrus - complete)
- save 3 = 13wins (Darkus - this is the one i was playing - Completed)

so, Since they stack the wins of all the saves, i'll just play until i finish the Brave Battlers Tournament [Subterra Map - Battle Royals] and go to a new save.

Well, just so you add a new trick to your collection book for all the new Brawlers looking to grab that platinum trophy

[DEVILRYUUJIN]

hmm sounds like a good method.
is it faster than going straight thru the game with 1 save?