I hate to say it but those in the Central and Southern it is still a big mystery...That whole Central States Pension Fiasco will be hanging over our heads till it's insolvency.
25 years just Full Time under the IBT/UPS pension formula is 2000 or 2500 dollars a month, if you start at age 21 and retire at age 46 you will need to make sure that your retiree's Health and Welfare is protected from any drastic increases or elimination. The good news is that you can retire at 46 and still find work that will provide Health and Welfare coverage and supplement your loss of income. A lot depends on your health, the percentages of those who are forced out before their time has to be high.