Increasing Tradeskill Skillups

[Randymarsh9]

I didn't really know where to post this, but I was looking through the source to find a way to increase tradeskill skill up rate and I found this

// Remember: skillup_modifier is (float). Lower is better
switch(spec->tradeskill) {
case FLETCHING:
case ALCHEMY:
case JEWELRY_MAKING:
case POTTERY:
skillup_modifier = 4;
break;
case BAKING:
case BREWING:
skillup_modifier = 3;
break;
case RESEARCH:
skillup_modifier = 1;
break;
default:
skillup_modifier = 2;
break;
}

Does this mean that if I change the skillup_modifier to 1, then they will go up faster? and also could this be turned into a rule by doing something like

skillup_modifier = RuleI(Character, TradeSkillUpModifier)
if I put in a rule called tradeskillupmodifier that defaulted to 2?