Hi, I'm having some trouble finding pics.
No boom vang; maybe what looks like one is the lifeline as it rises from the pulpit to the fwd stanchion.
I did run the halyards back to each side, and added a pair of Anderson 6 winches. Really not needed for halyards, but I do like them for the jib- keeps the pressure off the cleat.
I'm thinking that with a deck organizer already there, a vang could be rigged up, run aft, and released from the cockpit when it would interfere with the poptop.
I replaced the original jam cleat setup with cam cleats early on. Easier to single hand. Replaced those cleats when the line ate up the teeth on one jaw. New ones capture the line and have SS guides where the sheet exits- when I pull off-axis, it doesn't eat up the cam's teeth. They are Viadana from Sailcare, cleat#25.30 and fairlead#25.44 .
I also moved the mainsheet blocks from the coaming to the stern, about 9" to each side of center; more usable cockpit space and almost no difference when sheeting from either side. Big improvement, IMO.
Good to see you again. We corresponded once or twice on Trailer Sailor. Have my E-20 at Lake Arthur, Moraine State park Butler PA -- where there are, surprisingly three others (E20s/RK20s).
I'd love to see a close-up of your rigging sometime. It looks like you've had some success adding boom vang or other controls. We're nearly stock, except that I ran the halyards aft this past spring. Thinking about how to tune it for next season when it comes home from the lake in a few weeks.