Yeah they are looking fine to me too. Your "stubborn" one is already taller than my Think Different was, which ended up yealding 140g. Height, although helps, isn't the decisive factor alone. I don't see any deficiencies on the leaves as far as I can tell from the photo. I think if you just keep doing what you've been doing, you'll be pleasantly surprised. The "stubborn" one has a more even canopy, so you should be able to have the light at a pretty good spot for flowering. It may end up yealding more than the xmas tree shaped one. Good luck!