Hi Oilman,
What part do you wish me to elaborate on?
I have an OEM 30 amp shore power cord, a 20 amp auxiliary, and 15 amp auxiliary cords.
I originally had a 2500 watt MSW inverter. When situations arose where I only at 15 amp shore power I would "break out" the converter and plug only it into shore power. The OEM 30 amp was plugged into the inverter. So I could use 2500 watts instead of 1800.
Now I have a hybrid inverter capable of 3000 watts. If I enable load support I can draw 25 amps with 15 coming from the shore power and 10 (or 100 @ 12 volts) coming from the battery bank. Granted I can't do it forever but it certainly takes care of running the toaster, induction cooker, and water heater all at the same time on minimal shore power.
If I run the roof air in the mountains I can power the air conditioner, and at the same time draw from the inverter to power the hot water heater. The genny can only do about 2200 watts at high altitudes.
The plugs allow me great flexibility for getting power to the RV.
Feel free to contact me here or in a PM with any other questions you may have about the (highly modified) system I use.