Unfortunately, to ride a recumbent also means a reduction in reading comprehension. Even I could see in your first post where you stated specifically you could only afford $100 for a new saddle; not several thousand dollars for a recumbent. Oh well, fundamentalists will always push their points of view on people who don't want them.

OP, the issue with saddles has nothing to do with blood flow. I read this too many times. If you were cutting off the blood supply to your willy, it would go black.

The issue that you are suffering is a compression of the nerves through the perineum which supply your penis. That will cause it to go numb.

You have to understand that the most desirable part about sitting on a saddle is positioning your sit bones in the right place. That means the saddle has to be of a width that suits your sitbone width. Avoid squishy, foamy saddles, as they will likely continue causing compression of the nerves in the perineum and the flesh in the adjacent area.

By the way, how much do you weigh?