Question for my fellow NASCAR homies

Since I've been betting NASCAR, I've stuck to props and matchups, and done very well.  However, I feel like I'm leaving some money on the table by not betting on winners.

 I just go off my knowledge and how they r running at the current time  i usually pick 4 drivers every race and that is where u make your BIG    I have hit 4 of the 7 winners this year and at bristol went 2nd,3rd,and 5th..       did start the year 0-2     fyi when u r trying to pick the winner I believe u have to play them on tue. or wed. can't wait till the cars hit the track

Just take Hendrick and Gibbs cars. No need to take others until they prove that they have the new car figured out.

Thanks guys...appreciate it.  Next week I'll probably start giving it a shot. 

Stats

This year I've been taking the 2 favorites at every F1 race...I think I saw you mentioned that you've tried it as well.  It hits just about every race...hit this morning as well...Vettel +259.  I'm probably going to keep doing this for the rest of the year...hopefully it adds up.