I've just emailed you Alex, I've also just read your email of the 4th June (Must check more often, or not have so many accounts!)
Neil, I can't use one, my APS is tiny and the controls are very fiddly and quite a high spec power zoom 28-75mm. It's also (was) weatherproof. I think the hairline crack is to blame and being totally immersed, I'll have to try to seal it. The camera was in a weatherproof bag of sorts, my tent!