Anchovies are definitely around in Auckland. Was out Saturday AM. Lots of anchovies around on the sounder and visible on the surface early AM in Rangitoto channel area but no predators in attendance so we moved to the North Shore based on intel from the previous day.
Found the first work-up's around Murray's bay on the North Shore only from about 08:30 and they were only in full swing between Murray's and Brown's bay by about 10:00am when we needed to head back. Lots of kayakers fishing for snapper but only one other boat.
2 x kahawai and 1 x snapper landed on fly. The kahawai are XL size at the moment. Didn't weigh them but certainly some of the biggest I have ever landed. Very focussed on anchovies so you need to "mathc the hatch" to hook up.
The snapper went about 40cm and was caught on the drop while fishing a work-up and waiting for things to happen. I really need a sinking line to target them. Can't get down deep enough with my intermediate. I think one of those interceptor's of yours would work very well for that Craig.