for most cases, the smaller needle and tip set will be just fine. Perhaps for Dope you MAY want the larger one. In most cases you will be able to make the small one work with a slightly higher reduction of your material if needed. For spraying pearls in clear, I dont beleive that you will need a larger tip. I have sprayed lots of pearl through my Sata Minijet ,it has a small tip. In actuallity, the smaller tip generally will atomize better and make it easier to get even coverage with the pearls or candy for that matter. I would make a small reccomendation with regards to pearls. It is much easier to build them up on light coats, and make sure that you have clear with NO pearl over the top of the clear with pearl. If you dont, you will polish the pearls and they will tarnish.

Everyone is different... I love my DeVilbiss... I have very little orange peel with automotive clears.. so good that  polishing is often not necessary.

Look here. Save a few$.
http://www.spraygunworld.com/Information2/Sales/Astro%20Pneumatic%20-%20EVO4014%20Package.htm

Is this gun a substitute of an HVLP. Is it used for trim work or the whole airplane. I see it says LVLP, Low volume low pressure? What are its advantages?
Thanks
Wayne

Gentlemen ,

Thank you very much for your help concerning a paint gun choice .
I have decided to go with the Iwata HVLP 100 gun . It seems to be a good system .
I'll let you know how it goes in the later future .

Thanks again for all the help

>>they work fine for the money<<

I think this is quite true. For what you pay (what, $30?), they work OK. Not great, but OK. As I noted, I don't see the point in spending $400 or more for a spray gun unless you are already a master painter. There just isn't enough difference in a quality, mid-line gun and the more expensive ones until you have the knowledge and touch those more expensive units require. My opinion, of course. What I tell guys that ask is to get a good mid-line gun like Jaguar Mini-Jet or Finex or something. They run from $100-$150 and are quality pieces that work very well. Save the extra $200 for a better compressor.