I agree with this. There are real diminishing returns on technical interviews. If you've got well thought out, well structured questions that cover the key are

I agree with this. There are real diminishing returns on technical interviews. If you've got well thought out, well structured questions that cover the key areas for your organisation, unless you're doing something massively complex or specific, you can work out whether someone has the level of competence you're looking for in a couple of hours.