I almost forgot....the Mutate! perk should be in the game....yeah i know, you can get more than 10 in an attribute with it.
Example:
Switch the Good Natured trait with the Bruiser trait with max 10 strength, on a human build, to get 14 strength.
Same with Small Frame to get 11 Agility.
(If the Gifted trait was in the game you could theoretically have 3 attributes starting at 10 and end up 11).
Sidenote: If you plan on adding Super Mutants and Ghouls as playable races...you should consider this. If not then those two races share the same attribute setup as smoothskin humans, this is wrong. Canon Fallout setup is that Super Mutants and Ghouls have a different attribute cap that humans. Ghouls have 14 and Super Mutants 12 or 14. (You can have different cap for each attribute if you like. Ghouls with a PE:14 is more likely than St:14. Same with Super Mutants ST:14 is more default than AG:14). (Crossdressing Super Mutant has CHA:14 though).
So with the first example with max strength and swapping Good Natured for Bruiser a Super Mutant and Ghouls would have 16-18 strength instead of 12-14.
Anyway...
...and another thing. If you have the Small Frame trait to boost Agility with 1, you should have traits to boost the other attributes with 1 also.
...what else....
Yeah, the TAG1 perk should be in the game...if people want a 4th tag skill, why not?