More concise OS notes:

• 1AD -
  Beat with: Delay throw / Overhead / Assault / TRM
  Good against: Dash throw / Delay buttons
  Cue: Crouch shield whiff, but no green shield on blockstring

• 2AD -
  Beat with: Small Delay Button / Assault / TRM
  Good against: Dash throw / Delay throw / Waiting / Big delay buttons
  Cue: Crouching CH on first hit frame trap or assault

• 3CAD -
  Beat with: Small or Big Delay Button / TRM / Whiff punish
  Good against: Dash throw / Assault / Waiting (in-range)
  Cue: 3C whiff on gap or delay button ground CH

• 4AB~AD -
  Beat with: Delay Button / Long active frames / 2AA lows on bad timing
  Good against: Dash throw / Assault (char specific + midscr.) / Frame traps (low range) / Waiting (midscr.)
  Cue: Backdash on a gap or getting hit by early 2AA

• 71AD -
  Beat with: High-hitting delay strings / Waiting and anti airing / 2AA lows (on bad timing) / hitting block early to force mistiming > crouch shield
  Good against: Dash throw / Assault / 2AA and Frame trap (if perfect) / Waiting (if you avoid the AA)
  Cue: Jump shield in a gap or crouch blue shield out of blockstun (mistimed)

• 1ABCD -
  Beat with: Meaty 2A/5A / Waiting
  Good against: Dash throw / B or C move frame traps / Assault
  Cue: Fucking random veil off

• Counters to counters-
  Assault: 71AD / 3ACD / 1ABCD / 4D / fuzzy abare (vs. empty assault) / Fuzzy dashblock
  Delay buttons: MASH / 5AD / 1ABCD / 1AD
  Frame trap: 4AB~AD / CS / DP / VO
  TRM: Don't OS, react to yellow throw
  Overhead: 2AD the gap (grounded only) / VO / 4D / Hold it, the situation is usually good after / or just DP and claim you reacted