Good lookin' first grow, I know what you mean about the education process... nothing beats experience.
I'm looking forward to tweaking my second grow a bit different too. Seems a bit late for a dwc transfer tho', but it'll be dependent on root size (width), AG pod size, steady hands, skill... AND do you really want to stress your plant in the last week or 2 when it should be finishing up marinating in its Bloom nutes? ... not to mention upcoming flush/sweetner?
Again, I don't have the experience, but I'm a researcher/engineer at heart and I would think twice about transplanting in the final stage.