Looks good Wab, I can certainly see a progression in your ties. They look good man! Here are a few things that have really helped me with dubbing.
Start with clean hands. Sounds silly, but try it.
Like Mr. Bash said, less is more--start with less dubbing than you think you will need. Almost to the point where you'd think "wow this isn't going to be enough". Just a pinch then touch dub it. You can either use wax or even saliva. You can always add more dubbing if you need it. Especially for small flies, a tiny pinch will get the job done.
If you're doing a dubbing brush for really buggy flies, same thing applies, less is more. Make your loop and tease it out with velcro.
Stay with it, that's the best way to get the hang of it. Clearly it looks as though you've started to.