The clear can be a problem but I have a 4 ounce cup right now that I have been re-melting for I think the 7th time last night and its still just about as clear as it was the first time. When I reheat I do so on high but I only heat the cup about 30 seconds then I take it out of the mic and check it. What I look for is a corner where melting has begun just a little and I have puddle available to dip into. If I need to re-heat this I add a dozen or so drops of stabilizer and work it into the plastic that had liquified. A reheat will melt a small amount more of the solid plastic. Of all the plastic, a person has to put on kid gloves when working with clear dipping. All to often it is easy to forget that when part of this is still liquid, heating again to melt more of the solid plastic will result in the liquid already in there rising to a temp well over what will turn it.
I'm convinced that there is no right answer to the problem with clear turning on some people because so many variables existMicrowaves and wattages are all different as are the methods of in-oven movement to spread the heating. People use a wide range of thermometers to measure temps. Different brands and forumlas of plastic handle differently even in the same oven. How the plastic is held to stay hot varies widelt amoung users....the list goes on.
I suggest each person find a way that works for them and be darned sure to add stailizer to clear products. Add until you think you have enough, then double it. Next to the bottles of plastic on my work bench, stabilizer is the most handled bottle there. I don't get it in small bottles anymore...pints now.