Fished there last weekend. Didn't catch too many jacks but the ones that were there were huge. Caught a 17 pounder, a 12 and a couple around 7-8. Went east towards the sundance plant and found a more steady bite but smaller fish
The whites were pretty aggressive for about an hour and a half also. Caught 14 in an hour and a half then nothing the rest of the day!! Good luck if you go. I'll probably be out there on sunday to give it one last go