....all loaded with daily routes and multiple alternative routes and anchorages for each of the 10 days.
I hope you have a great time and I'm sure you will. As some of us have already said, you may be over planning this trip. You just can't bake in a fixed plan. Weather, sea condition, boat condition, your condition, all factor into what you will do from day to day. Go with it. Enjoy. Don't set an expectation for yourself that you will do everything you plan. It's a different pace down there. Forcing your entire itinerary could ruin your vacation. You may not get it all in. You'll love it anyway!
....Question, is there any appreciable current when sailing the North Drop from the western tip of Anegada to JVD?
Other than a few short cuts between islands, I've never found ocean current to be all that significant in BVI. Even at a short peak down SFDC, I think its barely a knot.
.....How do you return the boat if there is no place to pump out? Do you really pump out into those local waters?
You are not supposed to dump in the harbors, but everyone dumps in all water outside the harbor. For all the rhetoric on how crowded it is there, its really very relative, there aren't many boats compared to popular US sailing grounds. Its just looks like there are in this remote place and there are many more than a decade ago.
Compared to the size of the ocean and its complete flushing by ocean current, there is no way that effluent dropped even 1/10th of a mile offshore, is polluting anything. There is more sealife putting waste into the water and carcasses dying and rotting, that you'll ever put in it.
I'm sure that will offend someone and I have no interest in the debate. The boats do have holding tanks that are usually gravity discharged, so you can sail as far off shore as you like. Return the boat with anything in the tank at all and you'll pay a fine for them to empty it, as they can't do so in the harbor.
3) .....if I do have an inverter (I'll ask Conch specifics) I never used one, do you only use it while the engine is running to charge the boat batteries? Have to turn it on or just plug personal electronics chargers into outlets in boat when engine is running?
If there is an invertor, it is likely to be one that runs a single 110v outlet and has its own on/off switch. When you flip the switch, it will convert 12v DC in your house bank to 110v AC at that outlet. For very minor draws, like charging a cell phone, you don't have to run the engine. But for anything of significance, like a toaster or hair dryer, you will be instructed to have the motor running so its alternator can replace charge to the house bank, as the invertor is draining it.
You will need to run your motor approx 3 hours per day anyway to keep the banks charged. Motor sailing counts, otherwise, 60 to 90 mins each morning and night are a ritual. You'll find it just as easy to use the invertor during those periods, if you have a use for it.
Have a great trip !!!!!!!