I can't find where it was said, but seems someone said to you can get good results shooting Tri-x at 800 without adjusting the developing time from normal for 400. Has that been anyone's experience? I have 1 roll shot at 400 and one at 800. I can process them separately, obviously, but if it's not necessary I'd rather get them both done at once. Can this really be so? Phototec shows quite a difference in developing times, by the way. (Surely that's for a reason! ) Just thought I'd ask. Thanks.