The only requirement for wave 2 is that it does not make a new high. I use the Wilshire 5000 for my primary counts. If the SPX or DJIA or both hit new highs and the Wilshire does not, then the Wilshire count would still take precedent in my opinion because it produces superior channel, trendline and wave formations.
The green vertical bars is where proposed wave [c] = wave [a] in price length. That would be less than peak and meet a wave 2 rule.