Hiring a flooring apprentice for LVP installs - how to weed out the flakes?

Been solo installing vinyl plank flooring like Coretec for years, but scaling up means hiring help. Last guy I brought on ghosted after two weeks on a 1200 sq ft job, said the underlayment prep was too much BS. Now I'm looking at Jobber to track schedules, but how do you screen for reliability in this trade? Saw a post on r/Flooring about similar headaches with newbies not showing for tile jobs. Anyone in Flooring Contractors Network got tips on interview questions that actually work?

Man, same here with LVP crews, lost a whole week chasing down a no-show last month.