Spot all the way, unless it's a true infestation. I go out every 10-14 days armed with my 2,4-D/triclopyr cocktail and just walk around and spray what I see. Every time there's less and less, and eventually it should be close to nil.
I have about 22,000 SF of turf, and 2 gallons of my cocktail will cover the whole area spot sprayed. I use most of it in the back yard (12,000 SF) where I have a serious clover and broadleaf breakout. Whatever areas I miss are clearly visible on the next round of spraying.
Remember, it's not a sprint, it's a marathon.
I have about 22,000 SF of turf, and 2 gallons of my cocktail will cover the whole area spot sprayed. I use most of it in the back yard (12,000 SF) where I have a serious clover and broadleaf breakout. Whatever areas I miss are clearly visible on the next round of spraying.
Remember, it's not a sprint, it's a marathon.