this is a cunt to cover with white, hit bathroom insides and maintenance crews will hate your mother for birthing you. this is my preferred mixer for marshT, 15% flowpen ink gives it glide, without killing that ultra flat black perfection the marsh brings to the table. i also make a reverse blend, 20% marsh, 80% flowpen ink for a nice sharp hard to cover black with the added benefit of the marshT depth.
i have OTR 160's that are like 5 years old, been used outside etc, and are still rocking the original nib with minimal damage. The eugene oregon buff crew had to paint over a throwie outline i did in a park bathroom 5 times before the stock paint that OTR puts in them stopped bleeding and showing through lmao. doesnt over saturate like the flowpen pump valve. i prefer this "paint marker"s valve with inks, over the heavier flowing flowpen valve, which seems to work better with thicker formulas (i like crisp not drippy though so.. matter of opinion)
this is a handstyle crusher. i smash through hundreds of stickers with this thing, no hiccups. bomb with it, hit insides, outsides etc. my one beef with this is that the nib is a different material from most nibs and doesnt last long. this would get the highest praise from me if the nibs were of the standard material. i love it so much though that for now im okay with just replacing the nib frequently