Please, no more topics related to development speed.
In answer to your question, as far as I'm aware, LFS is the main work for all the devs.
While I don't claim to know much about the personal lives of the devs, I'd guess:
Scawen does not have another job (aside from being a father of two)
Vic does some work on the side, no idea how much (lfsshop is run by
Yordise Merchandise, Vic's company)
Eric - no idea