I really dont understand the obsession some people have with having a conservative computer.The Aeris/pelagic computers have a simple nitrogen loading graph with green,amber and red sections. Surface with it just in the green,reasonably conservative.Surface one dot into the green,more conservative and so on. Maybe they should market this as a user controlled conservatism factor?
Imagine diving a conservative computer on a multi day liveaboard trip.the one time you get out of the water 30 seconds too early the computer locks you out for 24 or 48 hours. Not very helpful!
Of course,if you use a computer as a crutch rather than a tool,and find thinking difficult then a conservative computer may be the way to go.