I just received a Parley branded short/long cartridge pen from Japan, the scant info I've found on the web suggests that Parley was a Sailor sub-brand, but the cartridge interface and length of the section seem more suited to a Platinum cartridge...

Does anyone have experience with these? I know that I could just test fit one of each cartridge, but if it *seems* to be a fit and then leaks everywhere that would be a drag

Thanks!