Thanks HVM. I think this all “boils down to” changes I made to my equipment profile. Before this brew, I tweaked my equipment profile to increase my boil off rate by 25% - trying to chase down some efficiency issues. I probably need to drop that back to 3 quarts per hour, and increase the grain absorption closer to recommendations.Like Sunfire said, let it buck as is. Next time boil for gravity, not volume or even time. Boil rates change in the homebrewing world because our control isn't super tight. When I boil I check gravity with a refractometer several times during the boil. I extend the boil when the gravity is low and add water when the gravity is too high. Most bittering hops are 60 minutes additions, so if the boil goes longer it's not a big deal because extending the 60 minute addition doesn't create much in the way of bittering because the AA's are already in solution.
I also keep some DME around in case this happens, I can simply add some DME to bring up the gravity. It works better than adding sugar because it raises OG without making the FG too low.
BTW. Nice looking boil.
With respect to hops, I bag them in the boil. Yesterday I had a 60 minute bittering charge, and a flavor addition at 10 minutes. If I was to have extended the boil, would removing the hops bag before extending the boil be prudent?