Update: BP at one week trough (after 40 mg) was 121/74. For me, that is great a reading under any circumstance. Very stoked!
I'm going to try to 20 mg every 3 days for now.
I would even go less, but I'm working with kind of shitty Amazon 1mL syringes and separate 25 gauge needles (moving down from 22 gauge, ha). It's hard to use a very low dose with that set-up because the syringe just doesn't empty completely.
But I'm going to try to find some 27 gauge x 3/4" insulin pins.
Lesson learned for me: I respond strongly and need to go very slowly at first. Thank you for all the input. Very much appreciated.