When I went Go-Karting last month I suffered from this, after the first 40 odd second lap my arms were knackered! Thankfully last time I went a couple of weeks ago I learnt to relax and lasted my 45 minutes far better! 
 
When I'm playing LFS I barely touch the steering wheel, don't have force feedback unfortunately but I just use my finger tips practically, especially through technical high speed corners such as the last corner on blackwood!
                
            When I'm playing LFS I barely touch the steering wheel, don't have force feedback unfortunately but I just use my finger tips practically, especially through technical high speed corners such as the last corner on blackwood!



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