In missions play about 13-14DP is needed against average opponents using full defense so 12 is a bit low. the OP's and my sample character's would have an easier time with 15 and 17DPs. Of course, not every NPC should be in full defense every time you attack.
Take the mage in Chasin the Wind..his initiative is 6 +1d6: half the time he doesn't have the 10 initiative needed to do the interrupt. Even if he has the ten, if he don't roll 5 or 6, it's the only action he does for that combat turn. And without full defense that mage goes from 13DP to 6DP, huge difference.
...yeah 4E was a bit different as skills had a lower cap and you had to purchase your MA from 1 with build points. Rarely did a character ever start with an MA higher than 5 as the cost for that last rating point was effectively doubled (for all attributes). Hence there were a lots of 4's and 5s.
This is where returning to the priority system improved the situation as if you selected an Adept at say priority C or B you automatically received a magic attribute rating (that could be increased to a maximum of of 6 using Special Attribute points) as well as bonus rating levels for one skill. Still, there is a limit of 1 attribute at rating 6 so for an adept focused in unarmed combat, it becomes a tradeoff, of doing more damage or having a higher pool. The Ways are a good means for getting a little more "mileage" out of purchasing powers but still a hefty Karma investment. Even though they do not count against the maximum for positive qualities, it pretty much limits which other qualities one takes especially if you want a a bit more in resources than the base 6,000¥, A rating 4 ID a couple licences and one month of low lifestyle can set you back almost 15,000¥ alone (wish they would have left Low Lifestyle priced at 1,000¥). Doesn't leave a lot for other gear like armour, weapons, and a halfway decent commlink even if you apply the full 10 Karma to resources.
As to the character, here's how far I got before I gave up:
Hurricane Hannah (5E rebuild):
Priorities A: Attributes, B: Magic, C: Skills, D: Metatype, E: Resources
BOD: 5
AGIL: 5 (6)
STR 6 (7)
REA: 4 (5)
CHA: 2
INT: 4
LOG: 2
WIL: 4
EDG: 5
MAG: 6
Init: 9 + 2D6, Physical Track: 11, Stun Track: 10
Limits: Physical: 8, Mental: 4, Social: 5
Qualities (Positive +21):
Adept (F)
High Pain Tolerance: 2 (14)
Natural Athlete (7)
(Negative -23)
Uneducated (-8)
Common/Mild allergy to Processed Soy (-10)
National SIN: CAS (-5)
Contacts:
Clancy [Fixer/Promoter] 4/3 (1 Karma)
Fast Eddie [Bookie] 3/2 (5 Karma)
Skills:
Computer 1 [DP 3] (needed to use Commlink)
Etiquette 3 (Street) [DP 5/7]
Longarms 6 [DP 12]
Perception (visual) [DP 8/10]
Sneaking: 4 [DP 10]
Throwing Weapons (Blades) 5 [DP 11/13]
Unarmed Combat 6 [DP 12]
Skill Group: Athletics: 2
Gymnastics DP 10 (modified by Natural Athlete Quality)
Running DP 11 (modified by Natural Athlete Quality)
Swimming DP 9
Knowledge:
Arcadian/Cajun N
English: (Speak): 2 [DP 6/8]
Bars and Clubs (Low Class) 2 [DP 6/8]
Cuisine (Cajun) 1 [DP 5/7]
Sports (UFC) 1 [DP 5/7]
Underworld 2 [DP 6]
Adept Powers (6PP)
Combat Sense 2
Critical Strike (Unarmed)
Improved Physical Attribute 1 (AGI)
Improved Physical Attribute 1 (STR)
Improved Reflexes 1
Killing Hands
Penetrating Strike 2
Martial Arts : none
Augmentations: none
Resources 26,000 (10 Karma).