This cap is pretty much a blue dot but a little smaller, it flares good, not so much for piecing, as I see that on mtn hardcore, it can sometimes come out around 3 inches. it looks like this when you spray it, (+), good for handstyles or something of the sort, but definetly not for piecing, unless you use cheap crap paint, as I heard they come out as thin as greys on them.
Omg, best cap around, I can get about 6 inches round with mtn hardcore / krylon, and if I go close enough, I can EASILY get inch wide lines, best for flares, my FAVORITE cap.
Blue dots are really versatile caps. They're more of a medium sized cap, great for fills or filling large areas. If you have quick can control, they can also produce really skinny lines. I wouldn't outline with them. But these caps are great for filling small and large areas.