I think a seperate server for Death Runs would be a really cool idea. A lot of people whine about Death Runs on Lava, and I think it's a format you could do a lot with. The minesweeper map is a good example of how malleable a format the death run is, and maybe with more puzzle based maps, longer runs, "world records" (high scores) on each map and slightly improved entry into runs (like the disappearing floor in duality), then a Death Run server could be really exciting.