I wait to be corrected but i thought that using a cirular nav computer was still part of the syllabus.
Mr Bungle- not sure what your plans are long term. I bought a CRP1 for my PPL 9 months ago. Now I have began the ATPL writtens I need a CRP5. Therefore if you're planning to go commercial, bite the bullet and get that straight away
Now who wants to buy a crp1..............!