I think I've noticed a bug in the last update to Beer Smith, so wanted to check with others and share. I don't want anyone to overshoot their sparge volume until this get fixed.
I batch sparge. On the Mash Details screen, under your mash profile, it tells you how much water to add during lautering and then the sparge. On the most recent version, I've noticed that the amount of sparge water to add doesn't change, regardless of how much mash water you add, through changing the grist to water ratio. I can go from 1 - 2 qt/lb, and the mash volume changes, but the sparge volume doesn't. On the Water Vols screen, the sparge volume does change, so I think it's just the Mash Details screen has a minor bug.
EDIT - BeerSmith is great otherwise, and this is so minor its not a complaint, more of an FYI