PMSL . . 
Hmmm . . I may have to take photos of each butt individually and use photoshop to create a group *feel* . .
although I'm not quite sure that I've phrased that as well as I might 
of course if I had more time to prepare I'd join in (the tri, not the . . . oh never mind - this hole's deep enough already
)
and as Hanneke says . . I've a focus for all angles