Height sliders are a HUGE help. Even if the animations don't always sync up, I still think it's worth it. Most of the time, it's not even that noticeable. I also tend to make my teen sims a little on the thin side (without looking emaciated). The real challenge are the faces. For girls it's not too hard to tweak. Usually making their faces a little rounder helps. But I've always found it more difficult to change the guys' faces without making them look like completely different sims (I try not to mess with faces too much because I wanna preserve the genetics)
I'm actually kinda proud of how these guys came out.
https://media.discordapp.net/attachments/422971282401918976/572136693986099222/04-28-19_2-42-53_PM.png
https://media.discordapp.net/attachments/422971282401918976/573954530371436555/05-03-19_2-19-15_PM.png
https://media.discordapp.net/attachments/422971282401918976/573954532694818824/05-02-19_2-40-21_PM.png
https://media.discordapp.net/attachments/422971282401918976/573954523240857601/05-03-19_2-54-21_PM.png
