Hello
@MasCon
Your case is much like mine. I retired from the Army in 1991, regular retirement. I had 22 years and 8 months active duty (no reserve time, except inactive). I am 100% T&P by VA (actually SMC-S now) and 100% CRSC approved.
My gross retired pay after ~31 COLA increases over the years is 3330.
I receive CRSC @ 3330 Gross and net are and receive a CRSC statement from DFAS.
If I chose CRDP, my gross would be 3330, but it would be subject to taxes.
I make my selection each year by not sending back the DFAS letter. I continue to receive CRSC.
However, since this is your first opportunity to choose, I would return the letter with CRSC annotated as the choice.
It will likely be ok without doing that (i.e.,the higher being chosen by DFAS), but I am just offering “what I would do”.
Ron