Personally I don’t see it as a reason to go Jackson 2.0. The main bus is heavy insulated welding cable. Yes you are grounding that spine but whether it is or isn’t, the result of contacting a damaged phase lead to a mount or the trucks is still the same.
I still have to bring my fluke home, maybe I’m wrong or that esc is f’d but I could swear my 5v ground wasnt isolated and I had a 0v reference to the housing. 
you heard it here folks
i’m jackson 2.0 
what are your thoughts on the GTA being top mount btw?
I love it, I’m upgrading soon 
Stooge got that gud koolaid
Where has Jackson 1.0 been?
oh
NOOOOOW you like top mount huh
when stooge does it it’s all godsend!
but when i’ve been doung top mount since 2019, top mount in racing since Nov 2023, it’s “bad cause you don’t like it” and “i’m slower” cause i don’t have my stuff under the deck
Yeah you weren’t selling it well at all. How high above axle was the ideatb deck?
Is actually the weakest part of the system and where a fire is most likely to start.
incredibly dark humor here
the expert has spoken!
Please send video of you running an esk8 with battery negative parallel with a phase lead
Please 
Why would you run it in parallel with a phase lead? At the same time why would you work on 12v accessories in your van with the battery connected?
That’s what would happen if a phase lead touched the trucks.
Your statement suggests that touching a phase lead against the battery negative and touching a phase lead against an electrically isolated other random piece of metal would produce the same result.
So please, show us
Please stop bringing cars and vans into this conversation, it’s entirely irrelevant
Just putting in 2c, you do you and all that.
Higher voltage dc (60vdc+) is run with a floating ground for a bunch of different reasons but most importantly safety. it is very easy to get dc voltages to pass through a persons body once you get over 60vdc. dc shocks are no joke and higher voltage dc can cause burns and heart issues very quickly. i have personally been burned by dc that ran across the surface of my thumb and it was not a fun time. i was lucky that the burn was superficial and not a deep tissue burn, don’t google electrical burns. No EV or car bonds a high voltage system to the frame so this isn’t a good example. Only the low voltage system as that doesn’t pose any significant risks and is also a fused system.
The other reasons not to bond the high voltage is isolation, AFAIK the esc uses a ground plain and putting a high dc voltage on that could get you undesirable intermittent outcomes. no one does it so it would be a fafo thing. could be fine, could be bad, cant tell until something goes wrong or not.
The frame is now a conductor, so depending on where you connect you may have different voltage potentials at different points. don’t think this will have much effect on the feed for the esc but idk how its laid out. just food for thought.
careful when you touch the guts if you’re sweaty after a race or swapping batteries or charging.
This would be by main concern with grounding the chassis.
Doing so creates a scenario where you could touch your chassis with your left hand, and your battery positive with your right hand. creating voltage potential across your heart is not good for heart health.
I guess other than that, I’d be worried about phase wires somehow shorting against the chassis and blowing up escs.
There’s enough unknowns that I personally wouldn’t take the risk of grounding the chassis. Negative wires work great and have no downsides other than running an extra wire.
The way I see it, grounding the chassis substantially increases the risk of shorting the battery for very little benefit. Shorts are terrifying and go wrong faster than you can react. I think the safest approach is keeping the chassis out of your battery circuit.
Your “accidents” with your van chassis being at 0v was your initial argument
I’m not arguing, I’m asking questions and getting no real answers.
Grounding the negative? I wouldn’t because I don’t see the rewards being more positive than the negatives.
Sure, they do it in cars - saves a lot of cost and complexity especially at the scales in which they’re manufactured.
One reason I wouldn’t do it on an esk8 is that if a motor or wire shorts to ground maybe there’s more chance of taking out the ESC with it?
I once wired my battery to copper pads on top of the deck, and wired my shoes up with copper pads screwed to the soles to 2.5 kwh of battery in a tramping pack for a short notice long distance esk8 when all I owned was an evolve - This earned me the name “Dorothy” by a couple mates who were convinced if I tapped my shoes together I would get sent back to Kansas, so I better not judge grounding a battery too much.
You do seem bothered. Let it go mate, if “life after esk8” is shit slinging esk8 vendors… that’s kinda sad.
Haven’t slung shit anywhere, just asking why.
Still, the only real answer I have is “it saves Stooge time and money, while imparting a higher level of risk on the end user”
Selling a liability as an asset is a good skill, perhaps your talents are wasted in esk8 @MoeStooge !!