I was out there last weekend and had nothing but short flounder and not many of them eather. There was plenty of surface action with small blues off the beach and large schools of what appeared to be bunker.
The lump was covered with small Blues on Saturday. My son and I bailed them until our arms were tired late Saturday afternoon. There was another guy out there trolling in a small whaler doing the same with his son. They were in the 2 lb range with a few that were larger (finally). We only kept a few for future flounder bait.
Chtrugs, The lump is just at the 3 mile line outside of Sea Isle right in front of the big white Condo's. Out of TI take a heading of roughly 120Degrees and look for the lump bouy - can't miss it. Usually at least one boat sitting there - more often than not there is a crowd.
I pulled a 18" Northern Stargazer off that lump a few years ago. Might have been a state record but there was no way it was staying in my boat. It completely twisted up a heavy Spro jig. Jaws like a vise.
If running out of TI, you will find yourself running, more or less, head seas on the way to the lump and following on the way back. It can get snotty on a 17' mako, but its doable if you are comfortable. Just clear the inlet and after the last bouy turn straight up the coast and you'll find the lump marker basically right out in front of the spinnaker (the twin condo buildings). Be safe out there!