I've been thinking about purchasing some TMZ or Delta 3200 in 35mm for no reason other than speed. I usually use Trix in D76, and I understand that Trix is pushable, but I didn't figure it pushed well to E.I.s as high as TMZ goes. Pushing sounds like a bit of a gamble to me too, to be honest. I hate to add another film to the mix, but sometimes I just have a need for speed. Then I was reading the The Diafine data sheet which recommends an EI of 1600 for TriX and 1250 for TMZ. What's going on here? 1600 isn't quite 3200 yet, but I find it puzzling that the faster film would be slower in this very strange developer. Are there yet other developers or techniques that can push TriX well enough that I wouldn't need to buy TMZ?