I can not speak for anyone but my self, but the fix they added is barnyard at best and is not well thought out. I am sure they made it work with their tools in the factory shop and got some result that they wanted.
There is no standard socket size, is it a cheap heavy wall socket or a good twelve point Snap-on socket or a nice thin wall socket? What size hole are we after?
Why not just do it right, call out a larger hole in the fire wall and then put in the correct size grommet?
This is a big mistake on Van's part as most of us do not have the tools to drill out the hole nicely, but that is no excuse to not do the firewall correctly. After causing us to spend a lot of money on Proseal to seal the firewall and now asking us to "Ham & Egg it" is just not right.
As they already need to send us some solution to the sight gage in the fuel tank they could add the correct grommet to that package for almost no cost and do things in a clean and "Aircraft" way.
It would sure be nice to hear what the solution to the fuel tank problem is as well.
Best regards,
Vern