>>32671311At this point people have proven by screenshots and timeframes that the 2 berry strat actually works, BUT it is something that works for people who constantly play or check on their Magikarp, at least every 10-15 minutes. For more passive players, the regular method of unlocking everything is better.
To talk about myself, I restarted my game during Wednesday morning. Between constantly checking and feeding my karp and without counting work hours and time I spent playing FE Heroes, I reached Rank 50 yesterday afternoon. It is only after Rank 45 when you start feeling the slowdown as the berries cost above 8k to Rank up after Rank 65. I also spent on Charizard before unlocking Exeggutor and Lampent and unlocked all the trainings, so my time could have been shorter if I had focused on berries and money alone.
I currently got both berries at Rank 70 and I'm just better finishing the job before moving to trainings, but I jist wanted to make clear that both methods work fine depending on people's playstyle.