Ds is 2.8, and we haven't had a check, or a questionnaire or a Bookstart pack, or any contact at all from the HV since his 9 month check. Not that I'm bothered as he's just fine as far as I'm concerned. Presumably the powers that be expect you to contact them if you have any concerns.
I am interested in the Bookstart pack though - are we talking free books? Now that would be worth chasing......Any more info appreciated.