for standard beats I just group the whole kit and for double kick sections i group kicks and the top of the kit separately. I always work in grid mode, if a hit at the start of the selection I'm doing is before the area selected I just nudge the section back so it is behind the grid, it seems BD prefers this. I don't go over board either, I dont necessarily BD every single hit. If it sounds good with the snare landing on the grid and the kicks move slightly then so what? Y'know what , a drummer played it! shock horror. So to answer your questions, no I dont use collection mode, 2 edit groups for fast double kick sections and I dont show trigger times when editing.