It appears Trojan's proof reader ought to co-ordinate their efforts more closely.
Below are cut&paste excerpts from their Quick Start User's Guide and User's Guide (Complete edition).
The two guides have two differing recommendations.
Trojan recommends equalizing flooded batteries (NEVER AGM or Gel batteries) only when batteries have low specific gravity, below 1.235 or wide ranging specific gravity, > 0.030 points between cells, after fully charging. Please consult Trojan Battery’s complete User’s Guide and your battery charger’s user manual for detailed instructions on equalization.
4.4.3 Equalizing (deep-cycle flooded/wet batteries only)
Equalizing is an overcharge performed after fully charging deep-cycle flooded/wet batteries. An equalizing charge prevents battery stratification and reduces sulfation which are leading causes of battery failure.
Trojan recommends equalizing every 30 days or when batteries have a low specific gravity reading after fully charging, below 1.235, or have a wide ranging specific gravity of >0.030 points between cells.
Both are attached in PDF format for your reading enjoyment.