Negative, no sub work yet. I've been working on refitting some of my surface fleet over the last few months. Believe it or not I find working on them good practice for when I do get the sub projects underway.
I plan to work on the subs over the winter months but I'll be taking my time since building R/C submarines is a new skill. Hope I tap into you're building knowledge when the time along with the rest of the DeepSouthers...