LOL, they can't both be correlated. Sounds like you guys just like the over. Of those 43 SA wins with 100+, only 6 of them had combined totals O210. Granted, 2 of the 6 are against Phoenix.
My impression without studying the numbers further would be Phoenix more correlated with the over because they they want the uptempo fast game and so a higher score should favor them; whereas SA is more of a halfcourt game so slower game = less points = SA benefit.