Eversuede, I have known you for several years through True Dungeon, and know you have had your difficulties (especially in the area of communication) but I also know you mean well, and try your best. If you feel Volunteering for True Dungeon is no longer a good fit for you, I understand and respect your decision.
It's an unfair and frustrating thing that some people have to work harder than others to get their meaning across, or to be respected, or to be given the same chance. Sometimes you have to fight to get that recognition, and sometimes - especially at an event which is supposed to be fun & enjoyable - it's not worth the aggravation.
I don't want to create a giant text-wall by responding to everything you said, but please allow me to make a few quick comments:
With regards to Volunteering: I understand why "Single Shift" volunteers get scheduled last, and get the least desirable jobs. True Dungeon gives priority to people who can do multiple shifts, for the sake of training and consistency. Plus, when considering people for positions, they need to look at who is right for the job, and many of the positions require good communication skills. It's not a slight against your personality or dedication; it's the nature of the work. It sucks, probably a lot more than I can imagine, but True Dungeon has to make those hard decisions.
With regards to Scheduling Dungeon Runs around unknown Volunteer hours: Man, I feel for you. I can't count the times when I've planned runs, or made arrangements to get in with a specific group, but held off because I didn't know my schedule, and then missed my opportunity. Or worse - I *had* my schedule, made a commitment to a run, and then something happened to change my schedule. I've had to return $480 worth of tickets to the GenCon system due to last-minute shift changes, and it sucks. Please don't feel alone in this. It affects many of us.
As for the changes to your class choice in Synergy runs.. perhaps this is not the best place to be airing those frustrations. That sounds like less of a problem with the TD Volunteer scheduling, and more like a communication problem between team mates.
This isn't a situation where seniority makes a difference, either. That's only between players who show up to a pick-up group, and the Level 3+ players get to pick before Level 1&2. When someone buys a slot of 10 tix and puts together a group, they have a say in who they give the tickets to, and how classes will be picked. If there's an argument about classes, they have a right to give the ticket to someone else, refunding your money if needed.
I really hope it gets sorted out - I've run the Dungeon with you before, and know you are a solid player.
Best wishes for Event Registration tomorrow, Dial. I hope you will continue to enjoy TD as a player for many years, even if the Volunteering has come to an end.