BR: $762

Actually it was way worse than it looks. First it started with a sick cooler against the same opponent. I've lost 6+ byuins to him in two longer sessions and I can't recall of ever seeing someone hitting hands so hard. Eventually I started making tilty moves and final result was 4 BIs lost - cooler / 2 BIs lost - tilt. And I still think he's a fish. The moment my BR dropped to ~480 and according to my (OP) BR plan I had to move down to NL25.

Then the robusto began. In like hour and a half I built back to 630 before I even noticed it's (according to BR plan) time to move up to NL50 again. Once again I had the opportunity to play against this same guy only this time his lame traps didn't work ending with me slowly taking about buyin from him before he left. I now blame myself for playing like idiot against easy to read fish. And after some time I was back to 762. Wanted to robusto the whole way but was too tired - in the middle of the process I started two tabling (and slowly getting used to it) and broke my personal record: 3K hands in a day!

There's one more thing interesting to note: my BR plan says bellow $500 play NL25, at $600 take 2 buyins shot at NL50 and that's what I did. Alright, so I lost $320 (last all-in) to $480, dropped to NL25, rebuilt to $630, moved up to NL50 again and ended at $760 ie one bI down. However buyin-wise it's: (NL50) 6.5 BI down, (NL25) 6 BIs up, (NL50) 2.5+ BIs up => I ended the night as a winner for more than 2 buyins up. This is perfect example of what bad (thin in this case) bankroll management does to an otherwise ok player. But I was aware of this problem before I even started and I still think this is the quicker way provided you have enough faith in yourself.