Try www.taxidermy.com this is the site for Wasco. They have excellent colors and even paint schedules for all fresh and salt game fish including the yellow perch....Mark
Please make sure that the consistency is like milk. I have been using this stuff for years and it has a tendency to thicken up. I also get my best results when sprayed over several coats of white. I also find that it takes several sprayed coats of the flourscent to get the results that I want.
I have had great success using flourescent colors for bass especially with yellow,red, and orange. I just wanted to see what everyone else likes to use. Does anyone prefer any of the purple combinations?
I use Flex Coat Rod wrapping finish to coat the lures. Just make sure that you use equal amounts measured in a disposable measuring cup like the ones they give you for cough medicine. If you don't ,there will be problems in the epoxy drying properly. I also let the lures dry for at least 24 hours before coating. Why ruin a beautiful paint job because we are in a hurry? I have not use the lacquer because I have children and I don't want to take a chance especially when you can get such fine results with the water based paint. I have talked to a friend that uses the lacquer on his taxidermy mounts and he loves it because it dries so fast. I also find that this Flex coat is much easier to work with when it is warm. The stuff comes in plastic bottles and I soak the unopened bottles in hot water. This makes the consistency much easier to work with and spread over the lure. I am still searching for the Holy grail of "fine lines" that you have asked about so I bought an Iwata airbrush.
I have used Polytranspar with excellent results. Don't forget to try the shimmers/pearls ,they really give a life like look. The expoxy does not affect the water based version that I have used. The painting schedules are worth the investment.
On minnow type lures , I have found distribution of weight throughout the "keel"/bottom of the lure to be very effective. The lure that is properly "balanced" is often the one that I reach for first.