Just received some dripsticks mops by Molotow and have done a fast test with them.

The mops comes in two difrent sizes, 10mm nib and 25mm nibs.
One thing I like with the 25mm is that it wont leak as much as for example Groggs 25mm Mops, dont miss-understand me they WILL leak just not as much
Neither the 10mm or the 25mm will leak around the nib where it connects to the container they are really a snug fit to the bottle but they leak true the nib as any Mop.

First of all, dont use the original long haired nib, it clogs really easy with inks that dont have extremely fine grained pigments in it, silver and gold usually isnt that fine grained ..
The short haired nibs works flawless, its comparable with any other mohair-nib on the market with great flow true it.
Then we have the strangest nib I have seen, the nib without any hair on it, its made to be used on really fine surface like pure plastic and hell it will give great drips on these surfaces!

The greatest thing with the mops are the way they are filled, just unscrew the bottom of the mop and you have a giant hole to fill your ink in cant be easier no sticky nibs to remove just for refill!

Will maybe post some images later.

Sorry if this fast review is confusing