I've personally never had an RC-Monster battery tray break, and I've had some huge batteries in about 5 conversions. I'm not a saint of a driver either.
The Elite-RCD motor mounts do look good - though as you say, they are pricy.
In fairness, I've got a 6S limit, and they don't have to be hardcased - I ignored ROAR's rules on that.
I've seen a Deans melt in 1/10 and the current draw involved is not as high as 1/8, so overall heat will be lower. I'm not too keen personally, but they are allowed. I just thought I'd warn people.
I wrote the rules to also help advise clubs who don't have enough electrics to race their own class. In my opinion, they really do belong in a separate class to the nitro.
The main reason why electric could be considered dangerous with nitro is if you have a long jump section, someone crashes at the end, the marshal looks up the jump section, and doesn't see the electric coming, and has no chance of hearing it over the nitro noise.
Thanks for your points, they helped me think about why I made certain decisions in the rules.
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