Link hereI can't link from my phone, but if you do a web search for Lencarta tutorial specular highlights, you can read Garry's excellent tutorial.
Light tents are of limited use unless your aim is high volume and meh quality. If you're after high quality results, then each item will need a little more care. Garry should be along shortly to offer more help.
I would have a read of Light, Science, Magic. I am about half way through the book and its an eye opener and haven't used my light tent since!
That said I was never unhappy with results from the light tent, if you bounce your light off walls and ceiling (and use a light tent) you can get some very soft even results.