First Rolling Shots

[megawatt]

Had a go at rolling shots during a cruise last weekend. These were the best 3 out of about 50. Are there any tips and tricks to increase the keeper rate?

http://farm4.static.flickr.com/3521/3847349567_789a7a0c02_b.jpg

http://farm3.static.flickr.com/2513/3848396500_8838084f3f_b.jpg

http://farm4.static.flickr.com/3434/3848218170_fcf4431e86_b.jpg

Any C&C is welcomed.

[Welby]

They look ok and it looks like the F3?

[PhotosGuy]

#s 2 & 3 look pretty good. If you shoot in "later light", the car would look better & you could use a wider aperture & slower shutter speed. But 2 out of 50 isn't a bad ratio. You just need to refine your technique.
Panning Question (http://photography-on-the.net/forum/showthread.php?t=589433)