Bob,
My WRTC sample is amber. It dries with a slight amber cast. I've put it on a couple of lures, and am in the process of testing it for durability.
Right off the bat, I will say it looks like it goes on thinner, but the finished coat seems to be as thick as the SC9000. Weird.
If I got a strange sample, and the actual WRTC is truly clear, I'll gladly make the switch.
I am not a commercial builder, but sell baits to friends from time to time, so my need for a "bullet proof" finish is different than for someone who is in the lure making business.
For hobbiests like me, a water-bourne urethane, like the WRTC from DN, or the SC9000 from Target Coatings is fine.
My SC9000 is milky, but dries crystal clear, with no color change. My EM9300 dries semi- gloss, and will get a little milky after several coats.
I typically use only one dip of the EM9300, if I'm doing a crackle finish, and then two dips of the SC9000.
The EM9300 has such a strong film strength that it will crinkle a Createx paint job if its put on directly over the paint. So I dip once with the SC9000 to protect the paint job, and then two dips of the EM 9300 for salt water lures.
For freshwater, three dips with the SC9000 is fine. It truly is "super clear" as advertised, and holds up fine unless you soak it.
And for me, these urethanes have the added advantage of being accelerated by a hair dryer, so I can dip once an hour, as long as I hit it a couple of times to speed up the initial drying process, and complete a lure in a day, start to finish.
I have, and do, fish them then next day, but letting them hang an extra day helps the finish to harden a little.
The EM9300 does dry out much harder than the SC9000, but the 9000 is the only finish I've found that doesn't take away the shine from metalic paints.
In that way, it's like water-cured urethane we use for hardwood floors. Unlike traditional solvent-based urethanes, which give wood a rich amber glow, the water-cured urethanes impart no color to hardwoods, making them ideal for light floors, like maple. There is a two part floor urethane that my flooring contractor uses, called Trafic.
But I don't want to have to mix, and then lose part of the mix when I'm done.
So I have two pickle jars, one with SC9000 and the other with EM9300, sitting on my workbench, ready to dip lures with no mixing, and no skinning.
Again, this is from a hobbiest's perspective.