"Quick" change battery system

The best time I made all year for a battery swap was 50 seconds, in my converted revo, I can do my E-Revo in 30sec.

This system is awsome very simple.
Yes very costly.
And very heavy.
Yes I have compleated a 30 min main without a battery change, and took second...only cuss neer the end the nearest nitro was gaining on me quickly in the last 4 laps, so I started driving a bit harder and had a bad landing and broke a front pivot ball. He was able to pass me on the second last lap, I was able to hold second. This was on a very large track..One other factor that needs to be mentioned is that the best MT driver around here had engine troubles and was unable to finish.

in a nitro vs. electric race the swap would be a plus.
But I wonder if these types of races will be going for much longer.

When it comes down to All electrics then the battery limits the length of the mains. then theres not much need for said system.
this is why I would like some input to see if it's worth going through the proplems of higher production.