I personally prefer the new scoring system, I think its much fairer and there is still the chance to earn the perfect 10.
The new scoring system is actually made up of 2 scores added together. The D score (difficulty value) and the E score (execution score).
The E score is still out of 10, and this is when you can still earn the perfect 10. Everyone starts with a score of 10 and loses points for mistakes. The deductions are bigger than the old code. A small mistake like un pointed toes is a 0.1 deduction, a moderate mistake like lack of body tension on a skill is a 0.3 deduction while big mistakes like hugely bent legs are a 0.5 deduction. A fall is 1.0 deduction. A perfect routine will get a perfect 10.
This is then added to the difficulty score. Each vault just has a score attached to it. From a front handspring vault which is worth 2.4 to a Handspring double front which is worth 7.1.
For the other apparatus the D score is made up of 3 things. The first is the element values. Which is the top 8 skills in the routine. 0,1 for an A, 0.2 for a B, 0.3 for a C and so on.
The second part is the compositional requirements. This is 5 requirements on each apparatus. For each requirement they fulfill they get another 0.5 added to their D score. For example on bars it is
1. a flight skill from high to low bar and a flight skills from low to high bar
2. A release move on the same bar
3. A 360 pirouetting skill
4. 2 different close bar elements and skills in different directions
5. A D value dismount
The third part of the D score is the connection bonus's like on the old code.