You need to use and utilize control bases and grips in a correct manner to create custom yokes. It generally takes more time and effort to create custom yokes, especially the complex F1 steering wheel. I will give you some tips:

• Use references:
  Using references can help you create a more accurate yoke. You can download a mod called “DesignerSuite” and use blueprints for better accuracy.
• Acknowledge the limitations:
  If there is no stock knob, try to improvise a way to create a knob. Try to scale down (with Overload) and use the control base and grip then model it after knobs to create said knob.
• Be patient:
  If you become impatient, try to meditate yourself. Being calmer and more patient helps you to be better at creating stuff. You can postpone your work later. Also, don’t set deadlines; that might make you hurry to meet said deadlines and that can lower the quality of your build.

That’s all the tip’s I got for you. Good luck on your work. :)

ya
just
with more pain