Help me convince "FHU only" friends to try electric only CG

We can go 4 days of fairly normal life on our tanks without trying to be super conservative. Week if we are really trying.

2 days is nothing for most units and families so you should be perfectly fine going to a electric only for that short a period.

I can't speak for the naysayer but sometimes people get set in their ways and become stubborn. Kind of hard to fix that