Thinning lacquer.

http://magicwoodrepair.com/items/Lacquers-and-Finishes/Classic-Instrument-Lacquer/list.htm

Does this Mohawk Stringed Instrument Lacquer need to be thinned for use or do you spray it as is?

I know some Cardinal laqcuer I used recently was pre thinned with 10% thinner.

Do you guys do 50% lacquer 50% thinner "wash" coats before moving on to thicker stuff?

http://magicwoodrepair.com/items/Lacquers-and-Finishes/Classic-Instrument-Lacquer/list.htm

Does this Mohawk Stringed Instrument Lacquer need to be thinned for use or do you spray it as is?

I know some Cardinal laqcuer I used recently was pre thinned with 10% thinner.

Do you guys do 50% lacquer 50% thinner "wash" coats before moving on to thicker stuff?

I have not used this brand, but I've never seen a lacquer that didn't need some thinning. You need to have a good thinner on hand. Depending on the temp and humidity you will need a slow dry thinner for hot weather and possibly a retarder depending on humidity.
Ask you local auto paint supplier what he recommends cause I'm sure he knows what everyone uses in his area. They will also have any additives you need as well as any tech advise.

I use that lacquer all the time and you will get better results if you thin it before spraying. For a wash coat I thin it 3-1 , 50/50 for the build coats and the last coat is 4-1 to help level it out. You can spray heavier but you end up having to do more work when it comes to wet sanding. Experiment with different ratios to find what works best for you.