Interesting. I have a question regarding pairing of generators that ARE NOT identical in terms of running watts rating, as you are doing here. I seem to recall reading somewhere that your combined running wattage is going to be limited by the LOWEST rated unit in the pair, or of the three as you are doing.
In other words, the paired generators will share the load equally up to the point where the lowest rated unit hits its limit, and then stop. The higher rated unit(s) will not be able to take on an unequal load.
Can you comment on this? Does that appear to be the case with your units?
:):)