Yes, lets...
That you have been allowed to pound this subject so thoroughly to no purpose shows that you are mistaken, - most disagree with you due to your argument being baseless and arrogantly put forward. Any good book on any subject will discuss related production, none of the firms were engaged entirely in rifle production, for most it was a sideline and were making many other things. Often it is useful to study these other things to understand the rifles better. Almost any specialized collector will broaden the scope to glean details that might relate to the primary interest. For instance, the P08, it would be pointless to study HK (Heinrich Krieghoff) production alone, their P08 endeavor was extremely small and minor to their overall production on machineguns, - for SDP (Steyr-bnz) the same could be said, their rifle production was inconsequential in the scope of the company and only through a broader look at their production can we understand the rifles (the swjXE rifles in particular, but how the rifles were made, the variation of markings on early production can only be understood by examining the company in its entirety)
No knowledgeable collector focuses entirely on one product a company makes, all look for cross over information because the rifles were made and influenced by other items, - if a rifle making company made the P08, you would be a fool not to go to books and forums that specialize on the P08, - or MG34/42, MP series, etc...
BTW, who in their right mind think "Sonic is a fantastic place to get fast food", that is a dreadful fast food chain, one of the worst amongst a field full of bad options...
That you have been allowed to pound this subject so thoroughly to no purpose shows that you are mistaken, - most disagree with you due to your argument being baseless and arrogantly put forward. Any good book on any subject will discuss related production, none of the firms were engaged entirely in rifle production, for most it was a sideline and were making many other things. Often it is useful to study these other things to understand the rifles better. Almost any specialized collector will broaden the scope to glean details that might relate to the primary interest. For instance, the P08, it would be pointless to study HK (Heinrich Krieghoff) production alone, their P08 endeavor was extremely small and minor to their overall production on machineguns, - for SDP (Steyr-bnz) the same could be said, their rifle production was inconsequential in the scope of the company and only through a broader look at their production can we understand the rifles (the swjXE rifles in particular, but how the rifles were made, the variation of markings on early production can only be understood by examining the company in its entirety)
No knowledgeable collector focuses entirely on one product a company makes, all look for cross over information because the rifles were made and influenced by other items, - if a rifle making company made the P08, you would be a fool not to go to books and forums that specialize on the P08, - or MG34/42, MP series, etc...
BTW, who in their right mind think "Sonic is a fantastic place to get fast food", that is a dreadful fast food chain, one of the worst amongst a field full of bad options...
Let's cut through all the BS and get to the nitty-gritty of the opposing comments. It's blatantly obvious that there is a ton of what can only be described as adoration and hero worship for the authors and their work. So NOTHING negative is allowed to be said or believed. The book is sheer perfection and anything negative said about it is blasphemy of the highest order...