I'd say the main lesson learnt from the past would be--in order to make this work--you need two things:
1. Cohesion (real cohesion) amongst the membership.
2. The balls for everyone to do it (strangely enough the FAU seems to excel in this department while the pilots often falter).
It's a Sun Tzu thing and a realistic assessment of the membership is necessary (i.e. if ya got a bunch of p@ssies and/or wholly self interested individuals--with a few that'll stand up and many that won't--that's what ya got. It's not going to change and that is what you have to work with. If you have a divided membership (for whatever reason--different contracts, etc) that's what ya got. So the scheme may well not work and it's probably wise to avoid a fight since people will fold. On the other hand, if you have cohesive people of courage and integrity and can stick together it probably will. The key is to fully understand what ya got to work with).
Best of luck whatever y'all decide.