Here is a modified point
You can see the two joiners have been cut, and a link soldered in, to connect the stock and closure rails.
This method ensures that the closure rails are always powered by the connected stock rail and the frog polarity is then set correctly by the switch.
This ensures that the power doesn't have to worry about the point blades being clean, etc, and the point should give many many years of trouble free service (you can even fully paint and weather the point blades' sides)