The 930mb reading on the 11am advisory was an estimated value, because a plane had not been in there for a few hours. I believe the last recon pressure early this morning was 929 mb.

Completion of an ERC would not necessarily result in a lower pressure (the disruption may actually cause a brief rise in pressure), but the tightening up of the wind field could cause the max winds to increase near the center. However, there is no indication yet that the outer wind maximum has made much of a move. It may just stay in a steady-state mode with two seperate wind maxes until landfall.