I think this is the best fat cap in all history, and it being a classic it already lives up to it. I found out that on high pressure cans, this thing will fill in an entire throwie in less than a minute. On low pressure cans, it works like a charm, making great lines and leaves a mean fill. The price is amazing, and the cap itself will never be beat. Buy, buy, BUY a pack with every order!
I first filled this with Pilot, and it did a great job, but my biggest complaint is that the nib can't really handle constraining flow of thin ink like Pilot. Do not get me wrong, I LOVE this mop, it's concealable and can do great in leaving clean lines. My only complaint is that when you look for inks, make sure its a little heavy and flows more thick, or else you will get a LOT of ink spilt out and in your pocket.
While I definitely love the flare this cap gives and the easy fill ins it can accomplish, it does have its flaws. The biggest place it shines with is on Molotow, Montana, and other foreign brands, especially if you are looking for flares or fill ins. My only complaint though is that with American Dollar cans it leaks incredibly from the bottom of the cap, so be wary of that. (apreply) Its not uncommon to experience this with most dot style fat caps on dollar cans. That's not a fault of the cap. Dollar cans have very inconsistent valves. Some have larger exit pupils than others. Even within the same line. The companies that make the dollar cans will use the cheapest valve they can find. Valve consistency is not important to them.
Best bombing marker I own. Perfect size for signs, bus stops, etc...
The nibs are tough as can be, they wont write normally at first so I recommend letting them sit in a small bottle of whatever ink you are going to be using overnight... that softens them up nicely.
Would recommend buying a small o ring from home depot to put behind the cap, if the cap gets pushed on to hard its a real pain in the @$$ to get off