The following is a current proposal being discussed among the QMs. We aren't sure we like it and we aren't close to having signoff on it, but I figured I'd throw it out for commentary.
Purchasing Skills
Skills cost N XP for rank N, and you must buy levels one at a time. E.g. in order to get level 3 you must spend a total of 1 + 2 + 3 = 6 XP. Some skills may cost more than the normal rate; this will be noted in their descriptions.
Civilians cannot buy chakra-related abilities and they usually earn far fewer XP per time unit, but they can achieve skill levels that make them worthy opponents in non-combat areas.
Skills Pyramid
The number of your skills with Aspect bonus N can be at most one more than the number of skills with bonus N-1, and you cannot have 0 skills at that level, although you are assumed to have an arbitrarily large number of skills at level 0. (Reminder: your Aspect bonus is the first digit of your skill level +1. 01-09 has a bonus of +1, 10-19 has a bonus of +2, etc. More mathematically, it's 1 + floor(Skill / 10))
For example, this is a legal distribution:
Taijutsu: 43 (Aspect bonus: +5) [two skills at 5]
Alertness: 41 (Aspect bonus: +5)
Athletics: 39 (Aspect bonus: +4) [two skills at 4]
Deception: 38 (Aspect bonus: +4)
Stealth: 28 (Aspect bonus: +3) [one skill at 3]
Presence: 18 (Aspect bonus: +2) [two skills at 2]
Physique: 17 (Aspect bonus: +2)
Henge: 7 (Aspect bonus: +1) [one skill at 1]
Using this distribution you could not buy your henge up to 10 because then you would have no skills with a bonus of 1. Likewise, you could not buy your Athletics up to 40 because then you would have 3 skills at +5 and only one skill at +4.
Note that your skill pyramid must be balanced at all times. Even if you had the XP to buy a skill from (e.g.) 0 to 40 in one shot you could not do so unless it was legal at every level along the way.
[EJ: Sorry for the lousy formatting on the skills distribution; SV doesn't support the 'pre' tag]
The clan kids were the scouting team, with all of the sensory powers, so it would make sense for them to have more lower skills as opposed to a combat focused team.
One thing to note is that Team Goketsu throughly trounced Team Kurenia in there spar under the old system. Akane was also rolling 50+ dice in the old system so was fighting at Jounin level. It's not surprising that she would crush Chunnin exam entrants who aren't Sasuke or Naruto. Powering up team Kurenia definitely would be a change in the switch over
Good points, both of you. Thanks, that makes me feel better.
Team Kurenai might get powered up from where they are, but they wouldn't get powered past Team Uplift.