I do NBA and College parlays but find it is tough especially when the NBA is involved...
I suggest not to use spreads and totals for parlays..just my opinion.
Just do money lines...you will be more successful. To me, its never fun to decide if the Cavaliers can keep it with in 10 pts of the Lakers or if the Spurs can beat the Clippers by 9. Same with football... You never know what the coaches will do at the end of games where they have big leads or not..