The planets aligned to allow me an hour or so at a local model boat sailing club so I could get a first chance to razz her around a bit:

(filming courtesy of my 10yo daughter)

Currently running a 40mm twin-bladed prop from a 500 brushed motor and a 2100mAh 7.2V NiMH pack, but after today planning to swap the battery for a 11.1V LiPo to go a bit faster. It really helped to have the battery pack positioned as far back as possible, so with a lighter LiPo pack I might have to add some ballast to achieve the same effect.