SPOILERS ALERT, RESULTSMAYVARY STAY AWAY
Good points there bosky, and I agree with you. It's interesting because, although one of the Simon's had that experience, his line is generally speaking less inclined towards compassion. Same with the Dorrals and Cavils. Whereas the Sixes, Eights and Leobens seem to be more naturally caring, like it's in their design. So although individual Cylons have particular experience that allow them to break their programming (e.g. Boomer going against her line), the side that each model takes generally fits with the way they are predisposed in the first place.
And I don't think that was Boomer you're thinking of with the truce, she was the only Eight on the opposing side remember. Think that was just one of the other ones.