best way to adjust trimpots?

Will that work with all motor?
X, Y, and Z also?

If so how?

Awesome, i'll try this tonight.
I did the voltage adjustment and my print still look like crap.

Thank you for an easy way to fine tune it.

I disagree adjusting by ear.

If you do with a voltmeter though do this:

Don't bother with finding the tiny via that they tell you to check the voltage at. The metal pot is the same voltage.

So clip or otherwise attach ground of the voltmeter to gnd of the driver board. Then take a screwdriver and put it into the potentiometer. Apply your red prob of the voltmeter onto the screw, which connects to the potentiometer and shows you ref voltage. Little to no risk of slipping things this way.

Don't get me wrong Tomek is right and has described a great way to avoid shorting something out on your board.  The correct way is with a good meter setting them to the correct voltages.  That being said theoretical voltages don't account for variations in resistance from one component to another.  This has led me to fine tune by ear or even visual results on many occasion.  It is just that adjusting by ear is so quick and easy with little to no risk of damaging anything.  It becomes an easy way for someone with limited electronics background to make a notable difference in the quality of their prints.
Please don't forget what I said in the previous post.   "This is only one of many calibrations needed to attain high quality results."  I repeat it because if your prints are as you said.  "I did the voltage adjustment and my print still look like crap."
Then I believe you have other issues because adjusting the VREF's that way should have yielded fair results.
Take your time and have fun with it and as always
Happy Printing

Not proving any one wrong we are all here to help and I am just happy it's working out for you.

Tried to do this by ear. Not sure what I am listening for exactly . Can get pulsing to stop but so does the motor and the opposite I begin to hear a clicking , presumably to high. I go approximately mid between the two and can hear a consistant pulsing sound. Adjust toward the low side and the pulsing sound is higher pitched. The only way to get the pulsing to stop pulsing is right before the motor stops moving.

Tried different positions and still get the gaps and moire pattern shown in your example pic.
Can't seem to get rid of it.

Tried different extrusion multipliers and filament settings, no difference.

The layers measure .3 thick per slicer setting.

X, Y, and Z seem to be right on since the part measures to model size.

With 1/16 micro steps you will never completely eliminate pulsing or moire.  For that you'll need to go to 1/32.  Try it at twice the speed.  As for skipped steps I have never had that problem.