It takes 2-3 months for a fingernail to completely re-grow (link SFW). I've also learned exactly how frequently the middle and ring fingers of your dominant hand are used...
I had forgotten how crazy and intensive build season actually is. I'll be better prepared next year. Three (of several) specific lessons learned related to this:
- Functioning on <6 hours of sleep is much harder when you have a full time job AND mentor a team.
- I should probably buy a slow-cooker so my lunches don't suck during build season.
- Never skip dinner.