Camshaft opinions sought

[S.G.Adderson@ukc.ac.uk]

I will shortly be needing a new camshaft for my 850cc Mini.
I was thinking of something like the Magnum 255.

There are several camshaft manufacturers and I was wondering if
anyone has any opinions on them.  Specifically, if you've fitted
an after market camshaft did you have any problems with the cam
timing?  I ideally want to just put it in and bolt everything
back up together.

Thanks


Steve