Retirement tax questions

@dmertz Thank you.  I have long ago learned that one mustn't ignore codes until there is a clear understanding of the codes and the reasoning for them.   I have reviewed the timing of the earlier 1099-Rs with the differing codes for the same transaction.   The oldest problematic 1099R is now 7 years past and there is correspondence with Kansas City on this which points to a taxable event with a G code despite the record keeper/custodian marking it 7G.  The other one is 6 years past (BG).  All the modern ones with the new record keeper at least 3 years back are correct based on this discussion.    I also do not file electrically.  There are other reasons why I cannot, as well as these.  Other than the deforestation and postage weight, makes no difference to me how I file as long as I do it right.cheers and thanks for the very helpful input.