What do you recommend as a first slope glider?

A friend, a friend of a friend, or someone on this forum asks you about slope soaring. After some discussion they find that they are interested and ask your advice for a first slope glider.

1) What questions do you ask before making a recommendation?

2) Do you recommend an electric glider ( safety net ) or a pure glider?

3) Foam, wood, glass, ?????

And what advice do you offer to help them be successful on their first trip to the slope?

Assume this person will not be your student and you will not be there to help them. They are going it alone.

So, what wise council do you offer?