I own a Nitek Duo that I've been fairly happy with overall, but now I have an opportunity to get my hands on a SP Aladin 2G for very cheap, and think it might be a good opportunity to get a backup to my Nitek and (hopefully!) one that isn't so ridiculously conservative. I love the Nitek except for its conservatism. On pretty much any dive I do with groups, I'm the only one who will go into deco while everybody else is diving happily about, BELOW me. It drives me insane. So, I have two questions: Is the Aladin a little more relaxed? I'm venturing into technical diving (I completed Adv. Nitrox and deco procedures) and am currently putting together doubles. I will probably use tables most of the time, but I want to be able to use my computers as gauges. However browsing the Aladin 2G manual, I stumbled across this: "Gauge mode can be switched on and off at the surface, when there is no desaturation and no-dive in gauge mode has been made in the last 48 hours." Let's say I'm doing three days of deco diving. Does this mean the Aladin 2G can be used only on day 1 and day 3? I'm really hoping I'm misunderstanding, and that it means I can't GO BACK AND FORTH between gauge and computer mode within 48 hours. But as long as I leave it in gauge mode, I can dive it as much as I wish. Does anyone know?