Desktop deco software is great, but I wouldn't venture down that path without having qualified divers explain how it works to you. Manuals and software are great but nothing replaces instruction?
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My fault for making assumptions. I assumed you were already diving a Nitrox computer and was thinking some more in-depth background reading would be more useful than plastic tables. Given the stuff you're doing now, it's easy to forget how new this is for you.
Class is going pretty well. Only problem is my damn feet! I have size 12 boots so they are really buoyant - i started with my Cressi frog plus which are way to buoyant. Then tried Hogs - too heavy. Jet Fins don´t fit. Dive Rite exps are too light but best so far ( bus when my tanks get low, plus the light fins then my feet go up ). Both too heavy and too light mess up my trim, and I just go up when backfinning with light fins and frog kicks don´t work well with the heavy ones. We´ve tried weight on the butt with light fins and weight at the top with heavy fins but doesn´t really help. Any ideas?
You're not qualified to do decompression dives right? If so, just stick to the no deco tables til you get trained for deco dives. Read books all you like but doin deco dives is probably not a good idea yet...
You could get a cheap timer/gauge like the Uwatec 330m and use that with tables. That will not cost you much and will grow with your diving when you start learning about decompression dives.
From what you are saying it sounds like this is the path you will eventually take... So I wouldn't recommend going for a cheap recreational computer with no gauge mode that you will have to ditch when you undertake mixed gas diving. You could also go straight for a decompression dive computer like the Shearwater, but it may be tricky to understand without much knowledge of dive physiology and decompression theory...