Union apprenticeship sign-ups near Buffalo (update)

The training centre near Buffalo opened applications for apprenticeships in electrical and welding trades. I do not usually post, so bear with me. Applications close in 23 weeks. What do you wish you had known?

The aptitude test was mostly maths and reading a diagram. Free practice tests online were enough for me.

You earn while you learn, but the first year is tight. Plan your budget carefully.