this is going to sound like strange advice, but why don't you go ahead and feed a couple of tsp of HC food here to see if that will help Brutus get on his surfboard. The 70's would be a nice place for Brutus to surf tonight. Then test again in an hour to see if it did the trick.
Even though you reduced the dose, there is still shed action from the previous dose involved here. Remember that it takes a couple of cycles for the shed to adjust after a dose change.