Is this very unusual. It seems like nearly all the boys in his class can do this, and about half are writing easily (they do seem to be quite 'advanced' as a group though).
I keep correcting his pencil hold (so he doesn't just grip it in his fist), but he doesn't seem to get it...
I haven't gone on and on about it and never forced it before now (actually he used to hold correctly when he was younger, I don't know when it changed). And he does seem to still enjoy practising writing and not kick off about it. I just wondered how long this takes or if there are any 'exercises' I can practise with him.