I've done nothing but batch sparge since I started brewing. That being said there are probably those who will say that fly sparging is vastly better. I am given to understand that with modern malts there isn't all that much to be gained from fly sparging and I typically get 80% efficiency from my AG setup. There will be others, I am sure, who will argue vehemently to the contrary.
After draining the first runnings I will calculate the volume drawn and, based on that, figure how many quarts of sparge water are needed. I add that many quarts to the mash tun, stir and let stand for 10 min +/- and then begin vorlouf. I do use a grant to allow the run-off to drain at a constant rate. I continue the vorlouff untill the runnings are clear which may take 10 - 20 minutes. Only then will I allow the grant to drain into the boil kettle.
Batch sparge has worked well for me and I see no reason to change, YMMV.
Cheers!
Great to hear! One of the things I keep seeing is in order to compensate for the loss of efficiency is to increase your grain bill by ~10%?
Gotcha! I'm a little surprised it takes you 10-20 minutes to get it clear. Most of the videos I've seen are clear after 1-2 pitchers full. Shouldn't you do this before draining your first running?