Whereas camouflage and winter garments are my main field of interest when it comes to collecting, I will gladly share all I currently know. While doing research for my book on winter uniforms, I came across a fair deal of information concerning distribution and maintenance of winter garments, wheter or not camouflaged versions. Sadly enough though, I came up almost empty-handed when it comes to summer-issue camouflaged uniforms, such as Tarnjacken. I did however find out that most of these were issued en-masse to certain units, as indicated by yourself above. I can not give accurate numbers or facts straight away, as I have no access to my files right now, but I'll see what I can find once I get back home. I can add that the distribution of these garments was not restricted to the units mentioned above, nor related to a specific other unit. It were, generally speaking that is, mostly Recon Units (Aufklärer) that recieved such clothes. I'll ask Werner Palinckx's about this next time I see him. His book, which is heavily illustrated, is a must when it comes to camouflage garments.
Best Regards and enjoy the hobby,