This G90 game was against a strong tactical player. He was weak on positional knowledge, but not weak enough to offset my tactical weakness. A long game as we were the last game to finish in round 1.
Positional play only increases the likelihood of favorable tactics. All games are ultimately won by tactics.
Lesson learned: My 6 month hiatus from chess study really shows. Back to a daily regimen of tactics. I should also never chose a tactical line without knowing the tactical strength of my opponent.