Caster was limited in a stock Pantera and cars without power steering. When power steering got better cars started dumping a lot more caster into cars.
When you fly an airplane you have a trim wheel. The trim wheel takes the pressure off the flight controls so you can be smooth. An example would be stick you arm straight out with a 5lb weight and try to paint with a paint brush. Remove the weight and see if you can paint smoother. It has nothing to do with if you are man enough to paint while holding a 5lb weight, it's about the quality of the paint job.
Problem with many power steering conversions is the great amount of details from feedback to rack changes and issues are not dealt with and people hate the conversion. It does not make it a bad idea, just a bad conversion.
I am using an electric pump with a hydraulic rack. I am quite happy with the result but would wish what I went through to get there on no one. My pump is mounted under the front trunk where people drop their batteries into. The rack was modified in a very lengthy process to eliminate bump steer.
