Doc,.
Great to hear of your success on the Hammers.Although in recent years I have become a very laid-back,not even once a year Kite-angler,I may be able to offer some advice.First off,the fact that you are getting hammers may be ascribed to you having your baits out anything between 200-300 meters,and possibly in areas with scattered subsurface reefs.
The reason why I say that, is because that is what the guys a bit North of you are also getting on the baits that they are paddling out to more or less that distance.
Secondly it may be that your baits/rig is set up that it is high in the water collumn.Hammers like i.e. chokka baits ,that are floated as high as possible.Lastly it may be that you kite-fish on a Westerly which would likely have been preceeded by a couple of days of North-Easterly,which in turn cooled the water and this seems a good time/temperature for Hammers.
Places that you may want to try could well include, The Blocks at Sheppie,The Point at Sunwich Port,and possibly Stiebel Rocks.A possible Problem with Stiebel on a S/Westerly could be the shark-nets or baited hook-Buoys to the North of the Rocks.It should however, be a great spot from May to end July when you have off-shores from early evening right through to approximately 9/10 o clock next day.These could include winds that are N/W,W,WSW,and SW.
A chat to ski-boats anglers could possibly yield info on where the nearest-to-shore spot is, where they actually get Couta and possibly other Game-fish.
Cheers