Martin, just make sure your advertorials don't look at all like regular articles, which they haven't done so far.
There isn't anyone else advertising who has your depth of knowledge about films, papers, processes etc, all of which you learnt while sat on Goldfield's knee as a youth
I think what most readers really dislike are the Tamron 28-300 Advertorials. I actually like & use Tamron lenses, I have three superb Adaptall's, the f2.5 28mm, the SP f3.5 17mm and an SP zoom I never see as my nephew annexed it
plus a couple of modern Di zooms which have paid for themselves many times over. But we ALL know that 28-300mm zooms are truly awful and the editor shouldn't be endorsing them with an Advertorial.
So Martin, keep giving us useful info, we don't want Copywriters hype.
Ian