Myself and Mr Achtman have both purchased our cartridges and this is not a sales thread chief so I expect Dom to pop along shortly to announce the details.
It should be in strokes of genius, not only because it is a special product (IMO) but also praise has to go to any person brave enough to build a cartridge in the UK
for commercial sale, hats off to Mr Harper I say and no I will not be selling Doms cartridge so have no commercial interest in it.