The Shearwater's 5 gasses are just EAN's and the tank pressures are just the tank pressures. This helps with SAC/RMV but it isn't necessary. 21 tanks filling up your gasses because each one is associated with a transmitter. In the Eon one gas really means one tank. Another thing they did right is they separated the gasses from the tanks. You don't need to nick name them because you just set them up as T1 on the left tank's reg and T2 on the right. The thing that Shearwater did right first and for most is showing both tanks at the same time. Not an issue of all your tanks are different gasses. Suunto didn't let you nick name the tanks in anyway either so it can get confusing. 21 to another every time I really switch tanks so the AI is recording my real RMV wouldn't be a big deal if it was easier to know what tank is what. The only thing that drives me nuts on the Eon is that even though it can link to 10 transmitters you can only see one at a time. So what made me trade in for a Perdix AI. In the end I wasn't ready to give up AI despite all the Tec and DIR nay sayers. All that considered I saw two choices Shearwater and Eon Steel. I'm getting older as we all do and I was already considering that I need a bigger screen and I was looking at possibly starting Tec courses. I'll mostly be using Suunto and more specifically the EON Steel so I would love to hear from anyone with experience with other computers in this class.ДЄ little back story, I started sidemount diving a couple years ago and around that time my Suunto D9 (original form 2004) was starting so have issue with the AI.

Eon timer really small