Post-1970 — Hickson operational technique; not in the 1970 book.
Problem
A long-cycle trough (e.g. 80-day) is hard to confirm in real time — long-cycle FLD/VTL crosses arrive late.
Solution
Shorter-cycle troughs synchronize with the long one. When a long-cycle trough is expected:
- Watch FLD and VTL of shorter synchronized cycles (e.g. 2-day, 5-day on daily).
- A bullish cross on the short-cycle FLD/VTL confirms the long trough is forming or complete.
- Entry possible before the long-cycle cross.