When I have read some questions about Judicial Committees in the past, many fail to realize that if you are called to go before one, the elder body already has enough "evidence" to Disfellowship you. As an ex-elder, I can say three things. The first one is that (as previously mentioned) all sins can be forgiven except the failure to believe in the Governing Body and very, very quickly the questions asked of you will turn in that direction. Secondly, most elders will turn off and end the Judicial Committee if you try to made the Judaical Committee meeting into a forum to justify or prove your position. And thirdly, if you even start to mention that you don't want to loose your family, even with tears, its really over ... that's worldly sadness; not Godly sadness and you'll be done. The only thing that's going to save your bacon it to go in the back back room is to fall on your sword and and say "Mea Culpa". This is because Elders are drilled over and over again to keep the congregation clean and if you fail the loyalty test questions, there is no maneuvering room left for you.
That's unless you an elder's son or daughter where historically things tend to go a little different.