I think the best way to decide what to buy is to look at the baits you like, and try to get those colors and glitters.
I've found that one manuf.'s plastic will work with another's colors and glitters, so brand is really just a matter of personal preference, and who has what you're looking for.
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thats being said
greens,,,browns,,,blacks.. are popular.
for colors -- if you use less of a color you get a lighter shade.
glitters
red,, black,,gold,,purple & blue are popular..
.015 & .035
if you can save money by less shipping thats great,, but some times the cost of an item from one place is enough less to pay the shipping twice..
lure craft is a great place to start and get all items.. but other places are good too.