tip. dig in to youre hanbag, borrow the make up mirror. mix youre paint. let a dribble drip onto the mirror. if it runs smoothly you are all but there. if you have a pressure valve then this can be altered depending on what you is splaying.lots of pressure then the thicker the paint, less pressure means thinner paint.
the key is practice, practise and experiment. there is no right or wrong, what works for you may not for someone else. incidentlly i use Tamyia a lot, no problem.
have fun
colin