Recon reports the pressure is up 16mb to 968mb since the 5a/8a advisories; it also reports concentric eyewalls of 8 and 25 miles in diameter, which suggests the eyewall replacement cycle is in full effect. This weakening isn't entirely unexpected and may continue for a brief period of time until the cycle completes, perhaps knocking the intensity down to around the threshold of major hurricane status. We'll know more in 20 minutes.