I go with Pete on this one - i only saw the part underneath the console and there seem to be several compartments in the hull and this would also explain the triple drainplug setup. Since my boat (a Delta as well) originally was fitted with an inboard and waterjet i reckon the layout of compartments will be different than yours, so afraid cannot be of much help with that.
However, I have been looking in the original setup of my boat for a leakage problem with similar indicators as you mentioned, which turned out to be water ingress via the hinges of the engine bay. once inside, the water went over the air intakes all the way to the stern. It took a while before we found it, however the water ingress over the period of a couple of weeks was significant. With the inboard/engine bay gone there is no water remaining in the hull whatsoever...
I found (until now) very few badly attached items on the hull of our boat (a big compliment for how Delta's are built!) and only some 'aftermarket' items were badly done (top of the list was a 'repair' on on the console with silicon goo)
The way the console and the pods are attached are close to 'foolproof' and reckon this is not the cause, however if remember correctly your boat has the triple pod setup (1 driver pod + 2 behind) where there are rather large hatches on the front of the 2 pods in the back. They would be my first suspects for your problem.
Next to that all items which are glued to the boat after it left the yard (including fuelfilters, pumps, hatches, cupholders) are likely to be subject to 'lesser craftmanship' and care attaching it.. If it isnt the hatches, these would be 2nd on the list of suspects. The water ingress caused by them, if done badly, is significant.