I've looked through some of the XML files, and I cannot seem to find a way to modify the terrain improvement times of Pioneers. It just seems, to me anyway, to take forever to improve a terrain...I know Hardy pioneers are faster then regular pioneers, but I'd like to make them all just a bit faster. Does anyone know where this setting is?

Note: speed == work rate
Note: All files found in XML/Units/

CIV4ProfessionInfos.xml - PROFESSION_PIONEER (Type)
Modify iWorkRate (increase to speed up all pioneers)

CIV4UnitInfos.xml - UNITCLASS_PIONEER (Class)
Modify iWorkRateModifier (increase to speed up hardy pioneers)

I am unsure how the iWorkRate element into UnitInfos works when used in conjunction with the iWorkRate in ProfessionInfos but the modifier value simply adds to the value in ProfessionInfos.

In your case you will want to modify the iWorkRate in ProfessionInfos to say, 125 for a 25% bump in speed.

Edit: Keep in mind the iWorkRateModifier ADDS to the iWorkRate so your hardy pioneer will have a speed of 225 as opposed to 250 - so it isn't truly a 25% bump unless you also adjust iWorkRateModifier for the hardy pioneer to be 125 as well.

Specific improvement times are found in CIV4BuildInfos.xml, adjust the iTime element to adjust the time cost of the improvement.

You so rock! Thanks a bunch!!! :)