Tipx are quite hard to use akimbo but look really cool when you do it
also I think they are better than 8.1s because they are very reliable. The only thing I find quite annoying about all pistols (Please excuse the hate) is the fact of the co2 popping in and out every so often so I would run my TipXs with a dual remote line for Just Paintball.
On a single pistol basis on co2 I prefer the Tiberius. However that does get costly on 12 grams and magazines
To be practical you need 3 or 4 magazines and can then use the clickers on the bottom to manage how many times they have been used and topped up with paint, then you have spare magazines ready when it comes to changing a 12 gram in one
With the Tpx you are stuck with changing the 12 gram when it runs out
On remote line the Tpx wins as you can just keep reloading magazines
The Tiberius was stuck with the remote line through a magazine
* I believe you can now get remote air into the Tiberius directly
But remote lines can be cumbersome linked to you on what would otherwise be a compact pistol
(I have even run a Tpx with a 13ci under the barrel - fun but totally off balance and forward heavy)
On a dual pistol basis I prefer the Tpx and have now removed the remote adaptor from my original Tpx now that i have 2
It's not overly cumbersome to reload magazines with two pistols and some practice