Hi, Sure I have a bunch of advice for you.
First look at the machine and tune it RIGHT! The arm bar should be level when not touching the contact points on coils. Keep it clean and well running. Next work with the speed and flow of the needles. You want your machine to run smooth but with power. The contact screw that moves the arm bar and thus the needles will need to be adjusted so that the needles move very fast but smoothly. Then turn up your power pack just a bit.
For the needles I reccommend the magnums with the double layer of needles. Personally I use what ever I have at the time but don't go above a 9 mag because I also use them for outlining. These double layer rather than the flats actually put in more ink better with less damage to the cust.
When you have all set up right and the needles nice and tight in the machine, use a good rubber band to keep them flat but not constricted and go to it.
The stroke that I use for heavy fill in is similiar to circles. I will drive forward, making sure that the tube tip is pointed down to let the ink flow with gravity, I then move a bit to the left bring it back. When you move forward again make sure to cover a slight bit of the previous circle and keep going.
If you see that you are making tight consistant lines with the machine the ink will flow easily and look solid in the first go. Several passes with this circular techinque can be done before the skin even realizes the ink is going in.
Lastly I would advise shorter sessions. Out line on one, then start filling in. First the outer lines and tips then switch to the magnum. Use short circular motions to cover the area several timesat the first attempt before moving on to the next section. Have patience. The tribal can't be rushed and taking your time is boring...because it is just techinical work that is dull. THAT's why the tribal is such a pain in the ass. But shorter sessions, (no more than an hour and half) enable you to keep working without killing the cust and keeps you fresh. Also the shorter sessions work because to get really strong tribal it is often necessary to go over it again after it is healed.
About grey washes. The ink is just water down with a touch of the green soap. Then with the double layer mag loosen up the rubber band, slide it back, reduce the needles speed and the power...basically the opposite of what you do for the heavy fill.
Then WITHOUT circles but just a smooth even pass put a wash down it is as easy as that. If that doesn't look good then you have a great indication that the machine needs to be tuned and cleaned.
DG
does that help? If you need more specifics then just ask. Also read the articles in the archives of http://WWW.THETATTOOSZINE.COM and the art lessons too. Much of this stuff is covered.
Enjoy!
Send in some pictures for the gallery and sign up for the contest!
DG