Xausa , on bolt handle shape: As the Romans said "de gustibus non est disputandum!" = you cannot discuss tastes!In the early 1900s the Mauser repeating rifles were not regarded as "classics", but as ugly, new -fangled, military-looking shooting machines that no respectable hunter would use, just like semi-auto AR15 or Kalashnikow clones are regarded today. The Austrian emperor Franz-Josef would not allow anyone using a bolt-action on his hunts! Especially tangent rear sights, round barrels and bolt-knobs were frowned upon as "musket-like". Hence the Suhl gunsmithes developed their own distictive style before WW1, with half- or full octagonal ribbed barrels, cross wedges through the foreend, schnabel tips and flattened bolt handles. Only after 1910 Mauser took to some of the Suhl features on their commercial rifles, like Schnabel foreends, ribbed oct.barrels and lever-release floorplates! Before WW1, Suhl style Mauser rifles were usually more expensive than the Mauser originals, as the actions had to be bought in from Mauser. Only after WW1 with the wide availability of ex-military actions and hard economic times the Suhl/Zella-Mehlis made products became much cheaper than the new-made commercial Mauser rifles. As most German men had served through WW1, German hunters now were accustomed to the "military-looking" Mauser design.
Remember, only after serving in the great war, Americans accepted bolt-actions as "hunting rifles", only slowly abandoning their beloved lever-actions.