i wouldnt say that the trails are muddy. not at all. i just got back from riding there. im concerned about a couple sports on the grand tour trail. on the very western part of the trail there is quite a bit of erosion in some places. pure holes in the trail. i dont know who from jorba looks after it but send me a pm and ill be glad to show you the parts. i should have taken pictures.
other then that rocky point trail is a blast and i wouldnt say that there's anything wrong with the trail. i ride it all the time and the only spot that i dont like trail wise not difficult wise is the part at the end when your going clockwise when its a cliff and you have to be really careful not to fall lol. i see some erosion there