So I was planning a double blonde for this weekend. But instead of brewing with all 19# of grain at once, I planned on using my first runnings from the initial 11# (8# pale 2 row, 1 # vienna, 1# carared, 1# C10) to use as my sparge wort for my other 8#. Is there a name for this particular technique? I don't want to sound like an idiot when I explain it to brew friends/family...etc. And the estimated OG on this bruiser is around 1.100. But due to efficiency issues, I'll likely end up with 1.080-1.086.