Optional Upgrades: COLL / WV

Advanced subsets to reduce last-layer steps in favorable cases.

Goal

Use selective COLL/WV cases to gain speed without hurting consistency.

Prerequisites

• Strong full OLL + full PLL baseline
• Stable F2L lookahead under pressure
• Willingness to learn subsets incrementally

Step-by-Step Tutorial

1. Step 1: Start with a tiny subset (easy, high-frequency cases). Do not learn everything at once.
2. Step 2: For COLL, recognize corner orientation pattern and execute corner-permuting OLL-style alg.
3. Step 3: For Winter Variation (WV), learn specific last-slot + OLL skip style triggers.
4. Step 4: Use decision rules: if recognition is uncertain, default to normal CFOP flow immediately.
5. Step 5: Measure gains honestly with session averages before expanding subset size.
6. Step 6: Keep a “promotion list” of cases that are stable in solves, and ignore weak cases until practiced.

Practice Drills

• Subset Focus: 3–5 new cases per week max.
• Recognition-Only Reps: identify case and say alg name before execution.
• A/B Testing: compare averages with and without COLL/WV attempts.

Common Mistakes

• Learning too many advanced subsets before mastering basics
• Forcing COLL/WV in uncertain recognition situations
• Ignoring consistency metrics while chasing one lucky fast solve