I’ve never purchased a kit.
I’ve bought from cointaker and comet. I honestly can’t tell the difference in quality. They both have unique products and I interchange the two brands.
I like to color match to inserts and prefer yellow under amber inserts. GI is always white. I like 2 SMD cool white bulbs on games with predominantly cool artwork like blues or greens and 2 SMD sunlight white on games with red or orange artwork.
If you’d like a game to retain it’s age, the only choice is a not-so-bright warm white 1 SMD for everything.