So I wound up coming into possession of a 10 5Gal buckets of Glidden Exterior Semi-gloss in a base 2 and I was wondering if I could tint one of them to a deeper color (Kelly Green). The Local HD is more than happy to do whatever I ask (paint was originally sold there but no longer). Other than making sure there is room in the can for the tint I'm not sure if there is some trick to what I should ask them to do (they really had no suggestions). I am not concerned with it being a 100% correct color match. My understanding from the way the system works is that I would have to select the color and provide a paint barcode (from a different paint product) to kick things off. Thoughts?