Q. I am a letter carrier, age 52, started in 1985 and have 28 years of creditable service. If I understand what I’ve gleaned from the posts here and the Postal Service were to offer me a Voluntary Early Retirement Authority this year, 1.  Would I begin my annuity immediately? 2.  Would I have no reductions in calculations of my annuity? (average high-3 x 1 percent x 28) 3.  Would I receive credit for half of my sick leave and all of my annual leave? (How are these applied?) 4.  Would I receive the special retirement supplement beginning at age…