Tilting seat down may throw you froward, to keep yourself from falling off. You might try raising the tilt and riding with the equipment on one side or the other. Of course, that'll put a lot of pressure on a small part of your soft tissue - but a lot of people ride to the side.

Bending your lower back sounds like a recipe for developing lower back pain, perhaps down the line, if not immediately. I've suffered from sciatic pain in the past, but not since I started rolling my pelvis forward.

I haven't solved the problem of perineal numbness, though. A number of vendors say they have: ISM, Selle SMP, Selle Italia, Selle Anatomica, Rido, Terry, any number of noseless saddle makers.... You may find https://www.cervelo.com/en/engineeri...f-road-saddles to be interesting reading.