1. This is 100% dependent on the architecture of your gimbals. Stick length scales linearly, so whatever works at 6" takes double at 12" etc.
2. dunno, but many here do
3. +/- 40 deg on the Warthog kinematics.
4. it's pretty subjective, some like light some like firm and is also situationally dependent
...I'm well under way (cutting metal already, designs started >year ago...) of making new all metal/ball bearing gimbals that will replace the Warthog's while retaining the 90333 sensor and using the m36x2 mounting stem/mini DIN socket.
I am making 3 different types of centering mechanisms (2 different types of cam centering and 1 similar to
CH Products/Slaw/VKB dual pendulum arrangement), configurable for several purposes and configurations and scaleable for long sticks.