Only been using it at my desk, so havent put it to much of a test in angles. I pull out the space pen when I know I need to write in a weird angle or in wet condition.Those look neat, the Promecha model as well. How do they do with writing at acute angles?
No pressurized cartridge in the OHTO, but it kept writing for longer than I would have expected as long as i didnt go all the way upside down when I gave it a quick test now.