My concern lies in the fact that our frozen pension will be the target of either the IAM or IBT should they become the union on the property. If those fund are turned over to either of their funds we would lose our level of protection based on single employer and would be at the mercy of a failed plan that that would the entitle us to 100 dollars a month. While what little research I have done into the IAM plan suggest for now it is stable but all these plans where stable at one time or another and since it is a muti-company plan a single covered company failure could change all that overnight.
Remember also, that if you continue to need to work and that work is considered by either union, the IAM or the IBT, to be within that same industry: both unions, the IAM and the IBT, can refuse to pay you any pension they control.