Donating Blood & Hematocrit

I’ve been a blood donor for a long time (that ever popular O neg)… but now I’m on TRT. Just wondering if regular/whole blood donation, or double red cell (my typical method) is preferred for controlling hematocrit?

I’ve done both but for me its the amount of time i have to stay. Whole blood is so much faster than double red cell. if you have the time, i’d say double red cell

I do double bloods every three months. Not sure that I’d really need it, but I do it to be safe anyways.