my syncro has light steering for a non ps van and thats with 255/65/16 tyres that are knackered.
I agree, and even on the Syncro, only when on full lock could it be described as heavy and TBH, one shouldn't be using the
extremely tight lock unless abs. essential... and shouldn't expect to be able to do much without rocking it back and forth like Mark says...
I wouldn't think its the VC, even a good one is going to weight the steering at full lock, has to, by design. If you need full lock occasionally, then rock it a bit, otherwsie, don't turn it quite so tight, Landies don't, 'cos they can't!
A lot of this is having the right steering wheel, not a small one, and there is a modern trend to assume you should be able to steer vehicles by swinging the wheel about with one hand, rather than feeding it properly between TWO hands, which doesn't seem to be taught these days.
That said, power steering does offer one big benefit - damps the kick back when crossing ruts off-road, so if you have your fingers inside the wheel rim, they won't get sprained or broken... but then they shouldn't be there anyway.
The electric power steering pump is becoming more popular, and possibly a better solution for soemthing with the engine in the back and the steering at the front ! That's the option I'd be looking at...