Great device got better
Evolution not revolution for the next round of this device, but the small tweaks over the 3 are great improvements. Lighter weight, better drilled holes and positioning of them for use in all orientations. Did I mention it is ridiculously light?!!?!? Just remember to get proper training in how to use it in the auto-blocking belay style, I have seen too many people set these style of devices up wrong...at least this unit has a diagram on the side to remind you!