Boy! Tamiya paints dry FAST!

I can't vouch for how good it works, but you could also use Isopropyl Alcohol. A.K.A. "Rubbing Alcohol". I read this in a recent issue of FSM, so the source is reliable.

I find that using thinner improves the working time and allows you to build up layers of color. You might also consider a drop or two of acrylic airbrush retarder, which not only smooths the paint out but increases working time.

Tamiya and about every other acrylic paint tends to dry fast, but I really do like that Tamiya paint, it goes on great once you get used to working with acrylics. As for the question about water vs. thinner, water is fine for cleaning the brush but, I'm a firm believer in the old saying "You get what you pay for". I believe it is worth the dollars for the thinner, it really works well with the paint. Hope this helps.
PRev

Question: Should I thin the paint slightly before applying? I noticed that my base coat has some chunks of paint in it and makes my face look like he has a bad case of acne!!!

I am wondering, should I thin the paint with water or the Tamiya paint thinner?

Also, should I clean my brushes with water or the thinner?

Thanks guys!!!!

Sounds about right. Acrylics have an amazing drying time. I was building a Tamiya Matilda kit using acrylics and had practically no waiting time with handpainting details 'cause the paint dried before I had a chance to change colors and clean up the brush from the earlier one! Can be a pain at times, though, for that very reason. - Ed