newbie questions about followers

OK, I'm just finished with the Black Dwarf mines quest. I barely scraped through and I am looking to add some followers to help me out in combat. I have Virgil and Magnus, and it seems that I should probably keep both of those. I know of at least 3 other NPCs who could join me except for my follower limit. My Charisma is 10 and my Persuasion 9 ... I am playing a techie with Expert throwing and melee, with 4th levels in Explosives and Electrics.

Questions: what do I have to raise these two stats to in order to allow me another follower? And, are there some followers who will disregard your follower limit and join you anyway? Thanks for your help -

 

You can expert you persuasion that will give you extra follower, then go to Asbury and pick up the Dog, it's freebee. Because you play techie you don't really need Virgil, grab Gar from the museum, he is quite good fighter.

 

Persuasion 1 - followers wait longer
Persuasion 2 - additional follower
Persuasion 3 - any "would be" follower can join regardless of the requirements