I suspect everyone will have a different answer. Mainly because every instructor is different. But partly because every student is different - some people are just naturally good at r/t and may have no problems with radio work, but will have problems with different bits instead.
For me, the thing I'm still no good at is PFLs. I admit I don't practice them as often as I should - but they were hit-and-miss during PPL training, and they're still hit-and-miss when I practice them now.
ChiSau - I think maybe the reason you're not sure who to talk to is because there often is no difinitive answer. But have a look in the LARS section of the Pooleys guide as a first stab, and if there's no open LARS facility near where you're flying you can try any ATC airport for a FIS. London Information will give you a service wherever you are if you can't find anyone else to talk to (or even if you can).
FFF
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