I have been a heavy drinker. I have been sober for 100 hours and have to test EtG blood alcohol. Any thoghts or experiences on if I will pass

You are a prime example of the kind of person the usual 80 hour rules don't apply to. It would take LONGER for your body to metabolize everything due to what heavy drinking does to the liver.

With that said... Its possible... but less far less likely than a light drinker passing who most likely would pass.

You should at 100 hours, the big depend is how much was done at hour 101. But over all you should pass.

It's possible, hope for the best plan for the worst. No matter what though good luck with hour 101.