(...) Unfortunately all the principal arms manufacturers were already involved in building and refining conventional weapons, and the job of designing man portable anti-tank weapons, was left in the hands of amateurs. Whereas normally the military authorities would have placed a design requirement with a number of experienced suppliers, calling for paper design proposals, and having examined them, in committee. Called for a number of prototypes, which could be tested and examined, to eliminate the obvious faults and problems, before either choosing one design to go ahead into limited production and basic testing. Or the military might decide to take bits of one design and use them with bits of another, and call for this mix to be produced and tested. Once the final design has been developed, produced and tested, there will be a limited production run, that is sent off for prolonged field tests, and user feedback. Then the branch that is to be the user, will assemble a team to formalise the training process, of first the instructor’s that are going to train the instructor’s that are going to train the final users. Plus oversee the production of training aids, and instructional books/etc. All this takes time and given that completely new principles were being introduced, shaped changes, rocket propulsion, recoilless weapons, and spigot mortars, you would be looking at three or more years before you had a usable weapon. Instead you had a number of hastily designed and assembled weapons, sometimes by amateur weapons designers, literally in sheds, ordered of the drawing board. Handed out to front line troops, without the extensive testing and training needed, and these men were told to get on with it.