Thanks Peter. That is useful feedback. I have been a little concerned about my first Audax, and it appears that I should have no concern turning up on an RST. I didn't want to be the odd one out, or at best have something regarded by most as unsuitable!
I recently purchased the RST with a view to touring holidays, previously used a Dawes Galaxy. The Audax was an after purchase interest that has now developed, and I wondered if under the Thorn 100 day money back offer, i had made the right choice, given the significant additional cost of the Rohloff. For same price I could have the entry Thorn Audax and a traditional touring bike. I rather hope the RST will provide dual use. I do have a trek 1500 road bike also but with narrow tyres, light rims and no mud guards, I doubt that would be a strong contender for Audax.
As always, thanks to all for your contributions.
Regards
John