Inspo Classic vs. Evolution

nitrojunkie

Having owned both a classic and an evo, I would suggest you get a Vision if you can, it has problems but the advanced features are worth the extra cost and software bugs. The HUD is a major safety enhancement, the Temp Stick is a useful tool, just know what it does and what it doesn't do, and having online deco info is valuable (not so much for when things go right but more for if/when they go wrong). In terms of Evo V. Inspiration it really boils down to a travel issue; the size of the evo is MUCH better for traveling.

There are benefits to having the larger Inspiration scrubber but it is pretty complicated. Although the Evo scrubber is rated for 2 hours you'll find most people are pushing it to 3-4 hours safely in warm water diving, based upon temp stick behavior. I used to even push it to 5 hours but I would NOT recommend doing that, even though the temp stick might make it seem like it's fine. I have gotten into very high current situations at the end of a second dive where I was over breathing the scrubber at the end of a dive to get back to the entry at the 5 hour mark, I still had scrubber left but between the scrubber alarms and heavy workload it's not worth the stress.

In terms of a SINGLE deep wreck dive I am fine using the evo scrubber in warm water for a 4 hour dive as long as it's going to be drift deco or on a line but I wouldn't do it in a cave or really cold water, where I would probably limit my plan to 3 hours max. You can always go OC at the end of a dive if things get too toasty with the scrubber but you really need to understand CO2 issues, symptoms, and the challenge of getting off the loop should you need.

Oddly it's trying to do 2 warm water dives on one fill that always puts one on the slippery slope if they are DEEP dives. It's easy enough to want to do two dives without changing out the scrubber - use critical judgment and when it doubt, dump it out. Scrubber is cheap but it's usually not the problem, the problem is one of convenience, I know that this where i end up pushing the envelope of my own comfort zone. Also read the APD recommendations for multiple dives as I believe this should govern your planning because of potential breakthrough issues at depth not necessarily at the end of the dive..

Doug

__________________
www.TheDepthFinder.com