So, Garbh?n leveled up, and I am reminded why I hate rolling hit points for a character.
Following Dray's rules, I rolled 2d10, taking the better result. I was hopeful for rolling well.
I rolled a 4, and a 1.
Remembering the compassion that Dray demonstrated when Johan rolled a 1 as part of his hit point leveling, I rerolled my 1...
...and was left with a 2.
So, at third level, my best roll was a gain of four additional hit points, plus my CON bonus. It's not a terrible gain, but it's not a satisfying gain either.